Misc Doctor / Time Lord Info I have collected pt 1
Respiratory bypass system that allows him to go without air for a limited amount of time. When used, the bypass system makes them very resistant to most forms of anesthetic (but not chloroform) and strangulation With warning a Gallifrey can store enough oxygen in their system to be active for 20 minutes
Body temperature of 15-16 degrees Celsius (60 degrees Fahrenheit)
Super-human level of stamina occasionally exhibited
Vocal cords differ from human in that they can hit higher vocal pitches (Key to Time Kroll episode) and are not affected by helium like humans (Robots of Death).
Vacuum Exposure: Time Lords can also survive full exposure to the vacuum of space with no ill effects
Electrocution: In "World War Three",[20] the Doctor is able to shake off an electrocution attempt which is fatal to a number of humans, and appears unaffected by the energy whip wielded by the Sycorax in "The Christmas Invasion".[21]
Healing Coma a healing coma that lowers their body temperature to below freezing.
Perceive the fabric of time In “The Fires of Pompeii“ the Doctor reveals that he is, discerning “fixed points” and “points in flux”. Additionally, he has shown a resistance to temporal effects
Telepathic ability, albeit to a limited degree among non-Gallifreyans
The Doctor has a higher then average ability to block out fellow Gallifreyans from his mind (fourth Dr episodes).
The temples were shown to be a psychic ‘connection point’ between him and non-Gallifreyans in both “Girl in the Fireplace” and “Fear her”;
Precognitive the seventh and eighth doctors also showed this ability sporadically.
Weaknesses: A tablet of aspirin could kill him The Doctor also exhibits some uncommon allergies to humans (parsley in 5th’s lapel. Example, in The Mind of Evil (1971).
Can live forever, “barring accidents.” In his final serial, the Second Doctor states that when “accidents” do occur, Time Lords can usually regenerate into new bodies, resulting in extremely long life spans. In an eighth doctor book (look up reference to confirm) the time Lords find a way to extend the Time Lord regenerations over 13 to near infinite which I was told was a treatment given to the Time Lords participating in the war and could be voluntarily activated to counteract the species devastation caused by the war.
Physical characteristics
Ancient Gallifreyan Biology: Ancient Gallifreyans didn't evolve from apes (they do not believe they evolved from monkeys either). Early Gallifreyans had only one heart. Most deaths were a result of heart failure. Ancient Gallifreyans have a bypass respiratory system. When used, the bypass system makes them very resistant to most forms of anesthetic (but not chloroform) and strangulation. With warning a Gallifrey can store enough oxygen in their system to be active for 20 minutes. They can hold their breath for hours if they don't move much. Their blood, hormones and pheromones have distinct differences from modern Gallifreyan. They usually can't interbreed with humans. Their children have milk teeth. Their children aged slower then Humans and it might take hundreds of years for a Gallifreyan to mature into an adult. An 11 year old would look like an 8 or 9-year-old human, but a 16 year old would look like an earth teenager. At around this point their aging slows dramatically - a 48 year old would look like an 18-year-old human. Gallifreyans in their teens need as much food as a human teenager if not more. Adult Gallifreyans eat about as much as human. Young Gallifreyans need to sleep a little more then most humans, but after they pass First Maturation and learn to control their bodies, they only need 1-2 hours a day. They live to be about 300 years old - or possibly forever. They might have had the telepathic, adaptive, and regenerative abilities similar to the Marshmen in Full Circle. The women tended to be much taller then males (this changed after when the looms were created). The women also tended to have well developed muscles. While a young (around 16) Gallifreyan’s telepathic powers are still developing they are vulnerable to experiencing strong emotions from large groups. Sometimes this causes a psychic feedback where the Gallifreyan ends up reinforcing the emotions of a group. All the adult minds of the planet were in constant telepathic entrelacement due to an organ located in their hypothalamus. This was thought to be the greatest curse of Gallifreyan civilization. One Gallifreyan every 1,000 years was born an Individual. Individuals could shield their minds from telepathy and had other psionic powers. When young, Individuals also made good time pilots. Because of their ability to focus older Individuals often became great philosophers, scientists, and explorers. Many became Heroes. Ancient Gallifreyans were sensitive to time and its movement.
Modern Gallifreyan Biology
GENETICS - Gallifreyans have Triple Helix DNA as well as TNA. The extra third strand was added by Rassilon to make Regeneration possible. Hidden in Gallifreyan DNA are 'killing lessons' to destroy Cacophony should she ever appear. Time Lords share 98% of their genes with Vampires. They are rated human-plus-plus-plus-plus. The DNA of every previous incarnation lies dormant inside a Gallifreyan's body. By the time he had regenerated 7 times the Doctor (and presumably other Gallifreyans) have 69 chromosomes divided into 23 homogeneous triads. They are vulnerable to some earth viruses, like influenza, fevers, and the common cold. They can also suffer from rheumatism. Before the curse fades almost all Gallifreyans are sterile. Every Gallifreyan has a Bio-Data Extract (AKA biog-data extract, or D-E) sample removed and stored by Coordinator of the Matrix and viewable only by the Coordinator, the Castellan, and members of the High Council. Transmission of an extract is considered treason. There are millions of Time Lord extracts stored in the Archival Office (implying that Gallifrey has had more then 1000 Time Lords for much of it history), but as of The Ancestor Cell a total of only 153,846 Time Lord minds have been uploaded into the Matrix. Extracts of Time Lords are color coded by chapter. Time Lord D-Es can only be accessed by the High Council or the Castellan and all accesses are logged. Also see this site
NERVOUS SYSTEM - Gallifreyan brains are green in color and larger then a human's. They have Super ganglion, which allows them to re-order and re-program their neural pathways at will. Among other things this allows them to separate the operation of the two hemispheres of their brains and makes them immune to some types of interrogation technology. They can also switch off the parts of their brain that process input from various senses, allowing them to limit their vast number of senses to the same range as a human. They have greater memory capacity than a human. A dormant throwback organ in their brains can allow them to sense higher dimensions (with training). They are much more vulnerable to changing magnetic fields then most humanoids are. At the base of their brains is a separate lobe called the Autonomic Brain that handles all body and motor functions. This frees the rest of the brain for purely intellectual pursuits allowing them to think of over 7,432 ideas in a few minutes. An electroencephalograph of a Gallifreyan brain will show a type of activity unlike any human brain. Because of their extended life span Gallifreyans need to clear out some of their memories every few thousand years. They usually store the more important memories using telepathic circuits. Gallifreyans have a nerve cluster of major ganglion along their left collarbone beneath the left clavicle that allows them complete control over their own metabolism. A blow at this cluster will render them unconscious. Their retinas are so sophisticated that they can almost think on their own. In addition to rods and cones their eyes are equipped with octagons, gives them amazing night vision. They can shift their vision outside the normal visual spectrum allowing them to see a total of 170 different levels of the electromagnetic spectrum, including in some shades of ultraviolet. Their pupil response is very different from humans and can resist super intense photoemissions that would permanently blind a human. (If they remember to check) they can tell whether a humanoid is Gallifreyan just by looking at them. They can speed read at a superhuman level. Their reflexes can be as much as ten times faster than a human's and some can write 30,000 words in just over 2 hours. A regenerated Gallifreyan's, hearing and smell is better than humans and some Gallifreyans can perform biochemical analyses of what they eat including identifying blood type. Unconscious Gallifreyans can often be awakened with a heated infusion of free radicals, antioxidants, and tannin (AKA boiling tea vapor). The scent of Celery is considered to be another powerful restorative on Gallifrey. Many Gallifreyans are capable of amazing voice imitation. Thus locks with voice prints are not in common use.
CIRCULATORY SYSTEM - Most Gallifreyans are loomed with one heart. When they regenerate they acquire a second heart that is a mirror image of the first. New blood Gallifreyans are loomed with 2 hearts and have excellent control over their appearance when regenerating. Their hearts are bivalved and each heart produces two distinct beats per cycle. Most Gallifreyans have two hearts (a primary and a secondary) each of which usually beat 60 times per minute and normally fibrillate at a rate of 300. A double pulse of 170 is considered more or less normal. The electrical activity of the hearts is much greater then humans and the beats are quite powerful making it difficult for the hearts to be exactly located with a stethoscope. The speed of each heart can vary and Gallifreyans are trained to stop both their hearts and feign death for several hours. Both hearts are supported by a binary vascular system. The removal of one heart results in the temporary loss of many Gallifreyan enhancements while a new heart is grown. If someone has a Gallifreyan heart transplanted into their body they will be linked to the donor Gallifreyan and it will be very difficult to kill the donor without killing the receiver as well. A Gallifreyan's blood pressure is typically 70/70 millimeters of mercury. Gallifreyan blood is darker than human blood and reddish-orange. It doesn't conform to any human pathological state and has lots of unusual acids. The respiratory pigment doesn't use hemoglobin but does share some of structural characteristics of human hemoglobin. It doesn't have a type and (due to its regenerative properties) it is in a constant state of genetic flux. Not surprisingly doesn't smell like human blood. Because of its unique nature it can be transfused into any human without complications. A human recipient will feel rather energized, probably because it carries oxygen (and other gases) vastly better than human blood. The advanced platelets detect even tiny amounts of toxins. Gallifreyan lungs can absorb every single molecule of oxygen inhaled. They need less (only 1/4) oxygen as a human to function normally and thus they normally take only 4 breaths a minute. The bypass respiratory systems also allows them to hold their breath for several minutes and they can enter a trance to reduce their oxygen intake even further allowing them to hold their breath for hours. Gallifreyans have a bypass respiratory system and a secondary cardiovascular system. When consciously triggered, the bypass system contracts, closing off their primary respiratory passages making them very resistant to most forms of anesthetic, ether, cyanide, strangulation, hanging, and the squeaky voice caused by helium. They lose their sense of smell when they rely on their Bypass respiratory system. As Gallifreyans pass 1000 years of age their bypass respiratory system becomes less reliable and there is a chance that they won't be able to awaken from its use. Gallifreyans are also much more resistant to mercury poisoning than Humans. Also see this site and this site.
PSIONICS - Whenever two Gallifreyans meet there is a courtesy mind-touch to identify and acknowledge each other. This allows them to recognize each other even if they are wearing a new body. There are also able to tell if humans are telepathic or not. Gallifreyans suffer psychic feedback, fever and headaches as their telepathic abilities mature. Gallifreyans can use touch telepathy to form entrelacement (Contact). They can implant post-hypnotic suggestions in people who are trying to read their minds. The Matrix also enhances the Time Lord telepathic powers. Every Time Lord possesses a quantum of Artron Energy, which gives them a unique Artron energy signature. This is significantly more life-energy than a human has. It's possible that females might be more gifted with telepathic abilities. They generate Artron Energy traces that can be used by others to determine their age and identity. The energy they possess increases by a minute amount every time they pass through the Vortex. They are capable of absorbing lethal amounts of energy from another humanoid. After doing so regeneration will be necessary to eliminate the energy. They can also donate their energy to recharge a TARDIS Power Cell but doing so consumes 10 years of their total lifespan. Gallifreyans can use a process called Soul Catching to absorb a dying Gallifreyan’s memory.
GENERAL BIOLOGY - They have got multiple organs of virtually everything including two more ribs (than humans). They have 2 of most of the organs that humans have only one of, and 4 of the organs that humans have only two of. Aside from the extra ribs a Gallifreyan's skeleton is almost identical to a humans. They have only one liver. Their internal body temperature is 15-16 degrees Celsius (60 degrees Fahrenheit) however their skin temperature is only a little below the human norm. Gallifreyans tend to find a room temp of 20 C to be uncomfortably hot. Despite this, adult Gallifreyans are capable of withstanding extreme temperatures at both ends of the scales. They can remain conscious in the -270 C cold of space for 6 minutes and can withstand 200 degree C for up to 3 minutes. At body temperatures of several hundred degrees below 0 C a Gallifreyan will lose complete control of their body and appear dead. Despite this their mind is in fact very active. Gallifreyan probably have tonsils and it’s not probably not unknown for them to be removed. Gallifreyans have more than one stomach and are not as vulnerable to malnutrition as Humans are. Despite this their metabolism is relatively close to a humans and they can eat the same foods. Some Gallifreyans can use their stomachs to interpret human memory RNA and producing the Gallifreyan equivalent. They and can easily go two days without water and a week without food is not a major strain. In fact they sometimes sit in thought for days without food or water. However 40 days without food or water will make a Gallifreyan delirious. Gallifreyans can't become drunk or suffer the effects of hallucinogens unless they want to, and thus can easily drink 10 pints of beer. They need to urinate every few days. Aspirin is incredibly toxic to Gallifreyans. The allergic reactions when aspirin begins to interfere with their genetic structure causes massive a pulmonary and cerebral embolism severe enough to prevent regeneration. Even touching it can be dangerous. Gallifreyans don't have prostate glands. When trained they can control their adrenaline, blood-sugar levels, heart rate, respiration, and perspiration to the point where they can fool 23rd century medical diagnostics. They can even switch off any of their organs at will. They also have control over the speed and location of their hair growth. They can grow hair faster then humans or stop the growth completely. Their skin smells like honey and has extra subdural and subcutaneous layers. This makes their skin very resistant to radiation, physical damage, to poison ivy, sunburns, and tanning. Gallifreyans can resist radiation that will kill a human in 4 minutes for 2-12 minutes before they start to take noticeable damage. They can easily absorb 50 times the output of a 21st century medical X-ray machine (approximately 50 rems of Roentgen (AKA X-Ray) radiation) and them expel it into any object they can touch. Younger incarnations appear to be significantly more resistant to radiation then older incarnations. Gallifreyans can erect non-porous barriers around their noses, ears and eyeballs that prevent any intrusion on the molecular level. This allows them to remain conscious for 6 minutes and survive up to 20 minutes in space unprotected. Gallifreyans have incredible strength for their size. They can remain conscious when exposed to G-forces that would kill a human.
They can enter self-induced sleep trance in which breathing, heartbeat, and brain activity are all reduced to an absolute minimum. While in this trance a Time Lord can ponder complex ideas without any outside distractions. 20 minutes in this state is equivalent to 8 hours for a human. Thus they only need about 1-6 hours of sleep every 2 days and some Gallifreyans can get by on a decade of sleep every 100 years. Others become tired after only being awake for only 4 days. Gallifreyans rarely dream, but when they do, they sometimes dream of choosing their next bodies, being able to fly, becoming the opposite sex, and bearing children. Gallifreyan who have regenerated in that last few days will require a lot of sleep, even by human standards.
Body temperature of 15-16 degrees Celsius (60 degrees Fahrenheit)
Super-human level of stamina occasionally exhibited
Vocal cords differ from human in that they can hit higher vocal pitches (Key to Time Kroll episode) and are not affected by helium like humans (Robots of Death).
Vacuum Exposure: Time Lords can also survive full exposure to the vacuum of space with no ill effects
Electrocution: In "World War Three",[20] the Doctor is able to shake off an electrocution attempt which is fatal to a number of humans, and appears unaffected by the energy whip wielded by the Sycorax in "The Christmas Invasion".[21]
Healing Coma a healing coma that lowers their body temperature to below freezing.
Perceive the fabric of time In “The Fires of Pompeii“ the Doctor reveals that he is, discerning “fixed points” and “points in flux”. Additionally, he has shown a resistance to temporal effects
Telepathic ability, albeit to a limited degree among non-Gallifreyans
The Doctor has a higher then average ability to block out fellow Gallifreyans from his mind (fourth Dr episodes).
The temples were shown to be a psychic ‘connection point’ between him and non-Gallifreyans in both “Girl in the Fireplace” and “Fear her”;
Precognitive the seventh and eighth doctors also showed this ability sporadically.
Weaknesses: A tablet of aspirin could kill him The Doctor also exhibits some uncommon allergies to humans (parsley in 5th’s lapel. Example, in The Mind of Evil (1971).
Can live forever, “barring accidents.” In his final serial, the Second Doctor states that when “accidents” do occur, Time Lords can usually regenerate into new bodies, resulting in extremely long life spans. In an eighth doctor book (look up reference to confirm) the time Lords find a way to extend the Time Lord regenerations over 13 to near infinite which I was told was a treatment given to the Time Lords participating in the war and could be voluntarily activated to counteract the species devastation caused by the war.
Physical characteristics
Ancient Gallifreyan Biology: Ancient Gallifreyans didn't evolve from apes (they do not believe they evolved from monkeys either). Early Gallifreyans had only one heart. Most deaths were a result of heart failure. Ancient Gallifreyans have a bypass respiratory system. When used, the bypass system makes them very resistant to most forms of anesthetic (but not chloroform) and strangulation. With warning a Gallifrey can store enough oxygen in their system to be active for 20 minutes. They can hold their breath for hours if they don't move much. Their blood, hormones and pheromones have distinct differences from modern Gallifreyan. They usually can't interbreed with humans. Their children have milk teeth. Their children aged slower then Humans and it might take hundreds of years for a Gallifreyan to mature into an adult. An 11 year old would look like an 8 or 9-year-old human, but a 16 year old would look like an earth teenager. At around this point their aging slows dramatically - a 48 year old would look like an 18-year-old human. Gallifreyans in their teens need as much food as a human teenager if not more. Adult Gallifreyans eat about as much as human. Young Gallifreyans need to sleep a little more then most humans, but after they pass First Maturation and learn to control their bodies, they only need 1-2 hours a day. They live to be about 300 years old - or possibly forever. They might have had the telepathic, adaptive, and regenerative abilities similar to the Marshmen in Full Circle. The women tended to be much taller then males (this changed after when the looms were created). The women also tended to have well developed muscles. While a young (around 16) Gallifreyan’s telepathic powers are still developing they are vulnerable to experiencing strong emotions from large groups. Sometimes this causes a psychic feedback where the Gallifreyan ends up reinforcing the emotions of a group. All the adult minds of the planet were in constant telepathic entrelacement due to an organ located in their hypothalamus. This was thought to be the greatest curse of Gallifreyan civilization. One Gallifreyan every 1,000 years was born an Individual. Individuals could shield their minds from telepathy and had other psionic powers. When young, Individuals also made good time pilots. Because of their ability to focus older Individuals often became great philosophers, scientists, and explorers. Many became Heroes. Ancient Gallifreyans were sensitive to time and its movement.
Modern Gallifreyan Biology
GENETICS - Gallifreyans have Triple Helix DNA as well as TNA. The extra third strand was added by Rassilon to make Regeneration possible. Hidden in Gallifreyan DNA are 'killing lessons' to destroy Cacophony should she ever appear. Time Lords share 98% of their genes with Vampires. They are rated human-plus-plus-plus-plus. The DNA of every previous incarnation lies dormant inside a Gallifreyan's body. By the time he had regenerated 7 times the Doctor (and presumably other Gallifreyans) have 69 chromosomes divided into 23 homogeneous triads. They are vulnerable to some earth viruses, like influenza, fevers, and the common cold. They can also suffer from rheumatism. Before the curse fades almost all Gallifreyans are sterile. Every Gallifreyan has a Bio-Data Extract (AKA biog-data extract, or D-E) sample removed and stored by Coordinator of the Matrix and viewable only by the Coordinator, the Castellan, and members of the High Council. Transmission of an extract is considered treason. There are millions of Time Lord extracts stored in the Archival Office (implying that Gallifrey has had more then 1000 Time Lords for much of it history), but as of The Ancestor Cell a total of only 153,846 Time Lord minds have been uploaded into the Matrix. Extracts of Time Lords are color coded by chapter. Time Lord D-Es can only be accessed by the High Council or the Castellan and all accesses are logged. Also see this site
NERVOUS SYSTEM - Gallifreyan brains are green in color and larger then a human's. They have Super ganglion, which allows them to re-order and re-program their neural pathways at will. Among other things this allows them to separate the operation of the two hemispheres of their brains and makes them immune to some types of interrogation technology. They can also switch off the parts of their brain that process input from various senses, allowing them to limit their vast number of senses to the same range as a human. They have greater memory capacity than a human. A dormant throwback organ in their brains can allow them to sense higher dimensions (with training). They are much more vulnerable to changing magnetic fields then most humanoids are. At the base of their brains is a separate lobe called the Autonomic Brain that handles all body and motor functions. This frees the rest of the brain for purely intellectual pursuits allowing them to think of over 7,432 ideas in a few minutes. An electroencephalograph of a Gallifreyan brain will show a type of activity unlike any human brain. Because of their extended life span Gallifreyans need to clear out some of their memories every few thousand years. They usually store the more important memories using telepathic circuits. Gallifreyans have a nerve cluster of major ganglion along their left collarbone beneath the left clavicle that allows them complete control over their own metabolism. A blow at this cluster will render them unconscious. Their retinas are so sophisticated that they can almost think on their own. In addition to rods and cones their eyes are equipped with octagons, gives them amazing night vision. They can shift their vision outside the normal visual spectrum allowing them to see a total of 170 different levels of the electromagnetic spectrum, including in some shades of ultraviolet. Their pupil response is very different from humans and can resist super intense photoemissions that would permanently blind a human. (If they remember to check) they can tell whether a humanoid is Gallifreyan just by looking at them. They can speed read at a superhuman level. Their reflexes can be as much as ten times faster than a human's and some can write 30,000 words in just over 2 hours. A regenerated Gallifreyan's, hearing and smell is better than humans and some Gallifreyans can perform biochemical analyses of what they eat including identifying blood type. Unconscious Gallifreyans can often be awakened with a heated infusion of free radicals, antioxidants, and tannin (AKA boiling tea vapor). The scent of Celery is considered to be another powerful restorative on Gallifrey. Many Gallifreyans are capable of amazing voice imitation. Thus locks with voice prints are not in common use.
CIRCULATORY SYSTEM - Most Gallifreyans are loomed with one heart. When they regenerate they acquire a second heart that is a mirror image of the first. New blood Gallifreyans are loomed with 2 hearts and have excellent control over their appearance when regenerating. Their hearts are bivalved and each heart produces two distinct beats per cycle. Most Gallifreyans have two hearts (a primary and a secondary) each of which usually beat 60 times per minute and normally fibrillate at a rate of 300. A double pulse of 170 is considered more or less normal. The electrical activity of the hearts is much greater then humans and the beats are quite powerful making it difficult for the hearts to be exactly located with a stethoscope. The speed of each heart can vary and Gallifreyans are trained to stop both their hearts and feign death for several hours. Both hearts are supported by a binary vascular system. The removal of one heart results in the temporary loss of many Gallifreyan enhancements while a new heart is grown. If someone has a Gallifreyan heart transplanted into their body they will be linked to the donor Gallifreyan and it will be very difficult to kill the donor without killing the receiver as well. A Gallifreyan's blood pressure is typically 70/70 millimeters of mercury. Gallifreyan blood is darker than human blood and reddish-orange. It doesn't conform to any human pathological state and has lots of unusual acids. The respiratory pigment doesn't use hemoglobin but does share some of structural characteristics of human hemoglobin. It doesn't have a type and (due to its regenerative properties) it is in a constant state of genetic flux. Not surprisingly doesn't smell like human blood. Because of its unique nature it can be transfused into any human without complications. A human recipient will feel rather energized, probably because it carries oxygen (and other gases) vastly better than human blood. The advanced platelets detect even tiny amounts of toxins. Gallifreyan lungs can absorb every single molecule of oxygen inhaled. They need less (only 1/4) oxygen as a human to function normally and thus they normally take only 4 breaths a minute. The bypass respiratory systems also allows them to hold their breath for several minutes and they can enter a trance to reduce their oxygen intake even further allowing them to hold their breath for hours. Gallifreyans have a bypass respiratory system and a secondary cardiovascular system. When consciously triggered, the bypass system contracts, closing off their primary respiratory passages making them very resistant to most forms of anesthetic, ether, cyanide, strangulation, hanging, and the squeaky voice caused by helium. They lose their sense of smell when they rely on their Bypass respiratory system. As Gallifreyans pass 1000 years of age their bypass respiratory system becomes less reliable and there is a chance that they won't be able to awaken from its use. Gallifreyans are also much more resistant to mercury poisoning than Humans. Also see this site and this site.
PSIONICS - Whenever two Gallifreyans meet there is a courtesy mind-touch to identify and acknowledge each other. This allows them to recognize each other even if they are wearing a new body. There are also able to tell if humans are telepathic or not. Gallifreyans suffer psychic feedback, fever and headaches as their telepathic abilities mature. Gallifreyans can use touch telepathy to form entrelacement (Contact). They can implant post-hypnotic suggestions in people who are trying to read their minds. The Matrix also enhances the Time Lord telepathic powers. Every Time Lord possesses a quantum of Artron Energy, which gives them a unique Artron energy signature. This is significantly more life-energy than a human has. It's possible that females might be more gifted with telepathic abilities. They generate Artron Energy traces that can be used by others to determine their age and identity. The energy they possess increases by a minute amount every time they pass through the Vortex. They are capable of absorbing lethal amounts of energy from another humanoid. After doing so regeneration will be necessary to eliminate the energy. They can also donate their energy to recharge a TARDIS Power Cell but doing so consumes 10 years of their total lifespan. Gallifreyans can use a process called Soul Catching to absorb a dying Gallifreyan’s memory.
GENERAL BIOLOGY - They have got multiple organs of virtually everything including two more ribs (than humans). They have 2 of most of the organs that humans have only one of, and 4 of the organs that humans have only two of. Aside from the extra ribs a Gallifreyan's skeleton is almost identical to a humans. They have only one liver. Their internal body temperature is 15-16 degrees Celsius (60 degrees Fahrenheit) however their skin temperature is only a little below the human norm. Gallifreyans tend to find a room temp of 20 C to be uncomfortably hot. Despite this, adult Gallifreyans are capable of withstanding extreme temperatures at both ends of the scales. They can remain conscious in the -270 C cold of space for 6 minutes and can withstand 200 degree C for up to 3 minutes. At body temperatures of several hundred degrees below 0 C a Gallifreyan will lose complete control of their body and appear dead. Despite this their mind is in fact very active. Gallifreyan probably have tonsils and it’s not probably not unknown for them to be removed. Gallifreyans have more than one stomach and are not as vulnerable to malnutrition as Humans are. Despite this their metabolism is relatively close to a humans and they can eat the same foods. Some Gallifreyans can use their stomachs to interpret human memory RNA and producing the Gallifreyan equivalent. They and can easily go two days without water and a week without food is not a major strain. In fact they sometimes sit in thought for days without food or water. However 40 days without food or water will make a Gallifreyan delirious. Gallifreyans can't become drunk or suffer the effects of hallucinogens unless they want to, and thus can easily drink 10 pints of beer. They need to urinate every few days. Aspirin is incredibly toxic to Gallifreyans. The allergic reactions when aspirin begins to interfere with their genetic structure causes massive a pulmonary and cerebral embolism severe enough to prevent regeneration. Even touching it can be dangerous. Gallifreyans don't have prostate glands. When trained they can control their adrenaline, blood-sugar levels, heart rate, respiration, and perspiration to the point where they can fool 23rd century medical diagnostics. They can even switch off any of their organs at will. They also have control over the speed and location of their hair growth. They can grow hair faster then humans or stop the growth completely. Their skin smells like honey and has extra subdural and subcutaneous layers. This makes their skin very resistant to radiation, physical damage, to poison ivy, sunburns, and tanning. Gallifreyans can resist radiation that will kill a human in 4 minutes for 2-12 minutes before they start to take noticeable damage. They can easily absorb 50 times the output of a 21st century medical X-ray machine (approximately 50 rems of Roentgen (AKA X-Ray) radiation) and them expel it into any object they can touch. Younger incarnations appear to be significantly more resistant to radiation then older incarnations. Gallifreyans can erect non-porous barriers around their noses, ears and eyeballs that prevent any intrusion on the molecular level. This allows them to remain conscious for 6 minutes and survive up to 20 minutes in space unprotected. Gallifreyans have incredible strength for their size. They can remain conscious when exposed to G-forces that would kill a human.
They can enter self-induced sleep trance in which breathing, heartbeat, and brain activity are all reduced to an absolute minimum. While in this trance a Time Lord can ponder complex ideas without any outside distractions. 20 minutes in this state is equivalent to 8 hours for a human. Thus they only need about 1-6 hours of sleep every 2 days and some Gallifreyans can get by on a decade of sleep every 100 years. Others become tired after only being awake for only 4 days. Gallifreyans rarely dream, but when they do, they sometimes dream of choosing their next bodies, being able to fly, becoming the opposite sex, and bearing children. Gallifreyan who have regenerated in that last few days will require a lot of sleep, even by human standards.