A billion-and-a-half beats

[absenthine]

I caught the end of this program several weekends ago, as I began my shift at the station. What a great concept. Your longevity is directly linked to your ability to cope with stress, because one's heart in a relaxed environment beats more slowly.

I wonder how many beats I've used. I wonder how many beats my cat has used. How many beats has your mailman used?