Aging.

Yep, I'm aging. So are you, if you're reading this.

None of us are getting out of this alive, but we can make some choice about *how* we age.

If your goal is just longevity, the key to longevity in every animal it's ever been tested in is caloric restriction. That's not just skimping on dessert, that's living with 40% of the calories you're accustomed to. How is that "living?" But if your goal is to live as long as possible, that's what the data say.

If you don't want to go the full caloric restriction Monty, what do you do? Exercise body and mind. Maintain a healthy weight (get rid of visceral fat!). Get most of your calories from fruits and vegetables. Don't smoke. Check your basement for radon. Wear sunscreen. Maintain a community of friends.

And choose your parents carefully. Yes, I know. But my point is that genetics also has a lot to do with it. 

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