Longevity and fasting

Full disclosure: I have no intention of living to be 100 years old. However, I am fascinated with longevity. The subtle yet important difference between living to be old and longevity is health. Obviously someone who lives into their 90s has to be healthy, but there's more to it. Longevity is the ability to remain as youthful as possible for as long as possible. Who wants to be a 95 year old that is confined to a bed all day? To you, healthy aging might mean playing golf everyday when you retire. To others it might be relaxing by the ocean with a good book. For me, healthy aging means that I remain active well into my 80s. I hope that by the time I hit 60 I'm still able to run a 10k under an hour. I'd like to be able to live 130 lbs over my head. I'd like to be able to put my socks on without sitting down. It all sounds wonderful doesn't it? Problem is we can't (easily) slow the aging process. There are four pillars to healthy living:
1. Diet
2. Exercise
3. Stress
4. Sleep 

The video below focuses on diet and why fasting is a key component for longevity. Calorie restriction is a hot area of research for ant-aging scientists. Results have shown that fasting can extend the life of monkey's, mice and even worms!