25/11/2025
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A recent study revealed that lifting weights for just 90 minutes a week can slow biological aging by as much as four years. Telomeres, which are protective caps at the ends of chromosomes, shorten with each cell division as we age. Shorter telomeres are associated with cellular aging and various age-related diseases. This study and others have found that regular strength training increases telomere length, thereby slowing biological aging.
Additionally, chronic inflammation is a key driver of aging and strength training helps combat it. By reducing inflammation, lifting weights can protect cells and slow down the shortening of telomeres.
Also, increased blood flow, a result of strength training, delivers more oxygen and nutrients to cells throughout the body, promoting cellular health and function.
Strength training also naturally boosts hormones like testosterone and growth hormone, which are crucial for muscle repair, recovery and overall cellular health.
As people age, they naturally lose muscle mass (sarcopenia). Lifting weights helps counteract this loss, maintaining muscle mass and improving metabolism. A higher muscle mass also improves insulin sensitivity and blood sugar regulation. These factors combined also contribute to slowing of biological aging and diseases prevention.
PMID: 39596838