Dietary restriction holds the key to longevity. It’s no secret that as you drastically reduce calories, your metabolism will slow down with it [ask anyone who’s tried to crash diet about that one]. Science has been trying to crack that egg for awhile now and because of that, it is the most researched method for slowing down the aging process. That was why researchers were so excited to find that a drug — rapamycin — appears to mimic that anti-aging effect.
Rapamycin, an antibiotic and immunosuppressant approved for medical use about 15 years ago, has drawn extensive interest for its apparent ability — at least in laboratory animal tests — to emulate the ability of dietary restriction in helping animals to live both longer and healthier. If the name sounds familiar that is because rapamycin is primarily used as an immunosuppressant — to help prevent rejection — specifically for people who have had organ transplants.