Writer's Block: I'll meet you down at the big yellow joint
That's a very good question. The health implications of both tabacco and marijuana are bad. However, the effects of THC, Delta-9-Tetrahydrocannabinol (the psychoactive chemical in marijuana), in your blood affects your thinking ability. Marijuana has a hallucengenic effect that can impair your judge and function. Cigarettes on the other hand, does not have those effects to your brain, but the long-term effects on your body is still very harmful. Because marijuana has this effect on the brain, the activities of the drug can cause people to do harmful things, not only onto themselves, but onto others as well (i.e. driving under the influcence or operating machinery while "stoned.") Because of this, this substance is heavily regulated and illegal to use. Also, marijuana is considered an entry drug, which leads many others to use more potent drugs like Meth, Crack, or Heroin. With that said, I'm sure that the next question will be, then why isn't alcohol illegal, it's as addictive and can cause just as much damage