High-intensity exercise linked to significantly lower disease risk

A study published in the European Heart Journal suggests that the intensity of physical activity may be more critical for health than total duration. Research led by Wei Jiehua, utilizing data from the UK Biobank involving over 96,000 adults, found that individuals who dedicated more than 4 percent of their total movement volume to high-intensity activity experienced a 29 to 61 percent reduction in the risk of eight major chronic diseases and premature death.

The most pronounced risk reductions were observed in inflammatory diseases, cardiovascular events, respiratory issues, and dementia. For conditions such as diabetes, kidney disease, and fatty liver, both intensity and total volume remained significant factors.

While the observational study does not prove direct causality, the findings align with guidelines from the European Society of Cardiology, which recommends 15 to 20 minutes of weekly high-intensity activity, such as brisk stair climbing or cycling to the point of breathlessness.