These are very interesting statistics. I always asked myself how do they come up with those numbers.

I believe those numbers cannot be isolated to smoking alone. Bad habits combine and add up.
I know many 90-year-olds that smoked a lot for their whole life.

I smoked for 25 years, stopped and changed my lifestyle. At 50, the health check doctor argued my stats with me having a history of a professional athlete.

Still, smoking is a very dangerous habit.