Scientists find the strength training “sweet spot” for a longer life

A recent study reveals that incorporating strength training into a weekly routine may contribute to a longer lifespan. The research, which analyzed data from three extensive US studies tracking nearly 150,000 health professionals over three decades, found that engaging in around 90 to 120 minutes of strength training per week correlated with a 13% lower risk of early death.

This optimal range was equivalent to an hour and a half to two hours of weightlifting per week, beyond which the benefits plateaued. The study also highlighted a synergistic effect when strength training was combined with regular aerobic exercise, such as walking or cycling, resulting in an additional 45% reduction in the risk of death compared to aerobic exercise alone.

The researchers attributed these health benefits to the metabolic activity of skeletal muscles, which play a crucial role in regulating blood sugar levels, combating inflammation, and influencing the function of other organs. Moreover, stronger muscles were linked to lower blood pressure, reduced risk of cardiovascular disease, and decreased likelihood of falls and fractures, all of which contribute to overall health and longevity.

While the study's observational nature precludes causation, it supports the notion that a modest commitment to strength training and regular aerobic activity can significantly enhance health outcomes.