More than a quarter of the world’s adult population — 1.4 billion people — are at a greater risk of cardiovascular disease because of insufficient exercise, according to a new study.

Researchers at the World Health Organization for the first time studied global activity trends over time. Their findings were published Tuesday in The Lancet Global Health journal. Researchers found little progress in improving physical activity levels between 2001 and 2016 despite a WHO goal of a 10 percent reduction by 2025.

“Unlike other major global health risks, levels of insufficient physical activity are not falling worldwide, on average, and over a quarter of all adults are not reaching the recommended levels of physical activity for good health,” lead author, Dr. Regina Guthold of the WHO said in a press release.

The recommended exercise is at least 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity physical activity per week.

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