Rapamycin's Anti-Aging Effects Have Scientists Calling It the 'Longevity Drug'

Humans are living longer than ever before, but that doesn’t mean we’re living better. As we age, people have less energy, are more prone to falls and serious injuries, and infections become harder to recover from. The body also goes through some serious changes, with wrinkles and other fine lines becoming more noticeable.

There are anti-aging products that promise the appearance of a younger-looking version of you, but retinol cream and skin elasticity supplements are a temporary fix. They do not correct the underlying problem that’s causing the aging process — but this may soon change.

Scientists are looking at a cancer drug called rapamycin and its potential to slow down aging. A growing number of animal studies have shown evidence of rapamycin extending the average lifespan and slowing down age-related illnesses and weight gain.

Unlike beauty products and hair dyes, rapamycin is not disguising a person’s age but stopping the molecular processes that speed up aging. Now scientists want to see if it works just as well in humans. If so, we may have the closest thing to a fountain of youth.

You’re not the only one getting older — your cells are too. Aging cells become less efficient and are more prone to making mistakes. “Cellular senescence is a state in which cells lose their ability to divide and function properly, contributing to the aging process,” explains Dr. Liam Murphy, a medical doctor at Melbourne Functional Medicine in Australia. 

Normally, the body’s immune system clears out damaged cells, but with more aging than healthy cells, this task gets harder to do over time. Unable to get rid of dysfunctional cells, the immune system itself gets weaker and can revert into a pro-inflammatory state that damages the few remaining healthy cells in your system. This overactive and uncontrollable immune response can spread and contribute to age-related diseases, such as cardiovascular disease, neurodegenerative disorders, and cancer. There are even reports suggesting that it’s the inflammation from aging and defective cells that contribute to skin sagging and wrinkles.

Rapamycin stops the body from entering this cellular fate. The cancer drug has been successful in suppressing this inflammatory state, and Murphy says it has helped with limiting damage to neighboring cells and tissues.

Rapamycin works by blocking a protein that activates the mTOR pathway. This pathway is involved in regulating cellular processes related to growth, metabolism, and aging. “The health benefits we seek, namely, to decelerate the aging process, occur by down-regulating mTOR,” says Dr. Carl Giordano, the co-founder and chief science officer for the longevity company Rebesana.

Related story

Does HRT Increase Dementia Risk? What the Data Really Says