Diverse exercise linked to longer life, large 30-year study finds
A Harvard-led analysis of 111,373 people followed for over 30 years found that engaging in a variety of physical activities lowers overall death risk by about 19–20%, with walking alone offering the lowest risk; a mix of at least three activity types totaling around 20 Metabolic Equivalent Tasks (METs) per week yields the best results, though benefits plateau beyond roughly two hours of running or five hours of brisk walking weekly. The study, published in BMJ Medicine, is observational but supports encouraging diverse activity to extend lifespan.