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Vigorous Exercise Intensity Beats Volume for Preventing Eight Major Chronic Diseases
A major UK Biobank study of over 470,000 people found that exercise intensity matters more than total volume for preventing chronic diseases. Participants with just 4% vigorous activity had 29-61% lower risks of cardiovascular disease, diabetes, dementia, and six other conditions compared to those doing only moderate exercise. The protective effects were independent of total exercise time, suggesting that short bursts of high-intensity activity provide outsized health benefits for longevity.
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