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Also some other noteworthy switches here:

He says they currently think the brain’s hypothalamus—known as the seat of control for hormones, body temperature, mood, hunger and circadian rhythms—may also act as a regulator of aging.

Other approaches that have been discovered to have anti-aging benefits in animals include calorie restriction, the drug rapamycin and parabiosis—the practice of giving old mice a blood supply from younger ones. The fact that these diverse strategies all seem to work suggests there may be more than one way to age, and that multiple complementary therapies may be needed to significantly extend longevity,
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