The optimal balance of mTor and AMPK, the two opposite biological mechanisms that drive cell proliferation and growth versus those that drive autophagy, protect mitochondrial homeostasis and optimize metabolism, and increase long-term health and longevity. Some of the factors that affect our health, aging, and lifespan are fortuitous and others are predictable. Then there's of course luck. Avoiding the plague and not getting hit by a garbage truck going 80. Stress is really bad. Island vacations tend to be low-stress.
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