Just a few minutes of activity that leaves people out of breath each day was associated with substantially lower risks of developing eight major diseases and of dying over about seven years in a study of roughly 96,000 UK Biobank participants who wore wrist accelerometers for a week. The research, published March 30, 2026 in the European Heart Journal, suggests that how intensely people move may matter alongside how much they move.
An international research team including Professor Minxue Shen of the Xiangya School of Public Health at Central South University in Hunan, China analyzed data from nearly 96,000 adults in the UK Biobank, a long-running health study in the United Kingdom.
Participants wore wrist-based accelerometers for one week, allowing researchers to quantify overall physical activity and the share done at a vigorous intensity—described in the report as effort that makes people feel out of breath. The team then tracked the likelihood of death or development of eight major conditions over the next seven years: major cardiovascular disease, irregular heartbeat, type 2 diabetes, immune-mediated inflammatory diseases, liver disease, chronic respiratory diseases, chronic kidney disease and dementia.
Compared with people who recorded no vigorous activity, those with the highest levels of vigorous activity had markedly lower risks for several outcomes, including a 63% lower risk of dementia, a 60% lower risk of type 2 diabetes, and a 46% lower risk of death from any cause, according to the report. The association was observed even when the total time spent in vigorous activity was relatively small.
The report also said the link between activity intensity and lower risk appeared particularly strong for inflammatory conditions such as arthritis and psoriasis. For some other outcomes—such as diabetes and chronic liver disease—the report suggested both the amount of activity and the intensity were important.
Shen said vigorous physical activity may prompt physiological effects that are harder to achieve with lower-intensity movement. “Vigorous physical activity appears to trigger specific responses in the body that lower-intensity activity cannot fully replicate,” he said. “During vigorous physical activity -- the kind that makes you feel out of breath -- your body responds in powerful ways. Your heart pumps more efficiently, your blood vessels become more flexible, and your body improves its ability to use oxygen.”
The researchers said their findings indicate vigorous movement can be integrated into daily life without formal exercise sessions, pointing to examples such as taking stairs quickly, walking fast between errands, or rushing to catch public transport. In the report, the authors noted that as little as 15 to 20 minutes per week of vigorous effort—spread across the week—was associated with meaningful benefits.
The report cautioned that vigorous activity may not be appropriate for everyone, particularly some older adults and people with certain medical conditions, and said physical activity should be tailored to the individual.
