> > When you are 69, does that make you equal to three 23-year-olds?
>
> Wouldn't know, I don't know any 23-year olds that I know of.

Such a shame.

> I heard that every cigarette you smoke takes an average of seven seconds off of your lifespan. Don't know how they calculated it.

Hmm. Unless my math is wrong, it would take roughly a year of chain smoking to take one day off your lifespan. So, in a lifetime, you wouldn't lose more than a couple of months, or maybe a few. I suppose the next step is to see where that statistic came from.

For you math people (namely, gremlinn, and maybe Wes and Rivikah): There are 86,400 seconds in a day. Divide that by 7 to get 12,342, the number of cigarettes you'd have to smoke to lose a day. Divide that by 20, the number of cigarettes in a pack (unless that's wrong -- I just remember that number from my grocery days), to get 617. I believe chain smokers average about 3 packs a day (also a figure from my grocery days), so divide that into 617 to get 206, the number of days you'd have to smoke 3 packs per day in order to lose one day of your life. Divide that by 30, the average number of days in a month, to get 6.87, the number of months it would take to lose one day of your life.

Let's say you smoke for about 60 years before you die. Multiply 60 by 12 to get the number of months in 60 years, or 720, then divide that by 6.87 to get 105, the total number of days of your life you would lose. That's roughly 3 months.

Ell"any and all mathematical errors are the fault of the Windows calculator"myruh