Just a few breathless minutes a day could be a powerful shield against major diseases.
Spending just a few minutes each day doing vigorous physical activity may significantly reduce the risk of developing eight major diseases, including arthritis, heart disease, and dementia, according to research published in the European Heart Journal on March 30.
To investigate this, researchers analyzed data from nearly 96,000 people. They compared participants’ overall activity levels with how much of that activity was vigorous, then examined how these patterns related to the risk of developing serious health conditions over time.
Even brief bursts of higher intensity effort, such as running to catch a bus, were associated with a lower overall risk of disease and death. The strongest benefits were seen for inflammatory conditions like arthritis, major cardiovascular problems such as heart attack and stroke, and dementia.
Large-Scale Study Tracks Activity and Health Outcomes
The study was conducted by an international research team that included Professor Minxue Shen from the Xiangya School of Public Health at Central South University in Hunan, China. He said: “We know that physical activity reduces the risk of chronic disease and premature death, and there is growing evidence that vigorous activity provides greater health benefits per minute than moderate activity. But questions remain about the importance of intense activity versus total physical activity. For example, if two people do the same total amount of activity, does the person who exercises more vigorously gain greater health benefits? And if someone has limited time, should they focus on exercising harder rather than longer?”
Participants were part of the UK Biobank study, with a total of 96,408 individuals included. Each person wore a wrist-based accelerometer for one week, allowing researchers to capture detailed movement data, including short bursts of vigorous activity that people may not recall. This information was used to measure both total activity and the proportion of activity intense enough to cause breathlessness.
Researchers then followed participants for seven years to assess their risk of dying or developing eight serious health conditions (major cardiovascular disease, irregular heartbeat, type 2 diabetes, immune-mediated inflammatory diseases, liver disease, chronic respiratory diseases, chronic kidney disease, and dementia).
Higher Intensity Activity Shows Stronger Health Benefits
The findings revealed that people who performed a greater share of their activity at a vigorous level had significantly lower risks across all conditions studied. Compared with individuals who did no vigorous activity, those with the highest proportion experienced a 63% lower risk of dementia, a 60% lower risk of type 2 diabetes, and a 46% lower risk of death. These benefits were observed even when the total time spent on vigorous activity was relatively small.
The importance of intensity varied depending on the disease. For inflammatory conditions such as arthritis and psoriasis, intensity appeared to be the primary factor in reducing risk. For conditions like diabetes and chronic liver disease, both how long people were active and how hard they exercised played important roles.
Why Vigorous Exercise Has Unique Effects
Professor Shen said: “Vigorous physical activity appears to trigger specific responses in the body that lower-intensity activity cannot fully replicate. 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.
“Vigorous activity also appears to reduce inflammation. This may help explain why we saw strong associations with inflammatory conditions such as psoriasis and arthritis. It may also stimulate chemicals in the brain that help keep brain cells healthy, which could help explain the lower risk of dementia.”
Small Lifestyle Changes Can Deliver Big Health Gains
“Our findings suggest that making some of your physical activity vigorous can provide substantial health benefits. This doesn’t require going to the gym. Adding short bursts of activity that make you slightly breathless into daily life, like taking the stairs quickly, walking fast between errands or playing actively with children, can make a real difference. Even 15 to 20 minutes per week of this kind of effort – just a few minutes a day – was linked to meaningful health benefits.
“Current guidelines generally focus on the amount of time spent being active per week. Our findings suggest that the composition of that activity matters, and matters differently depending on which diseases you’re trying to prevent. This could open the door to more personalised physical activity recommendations based on an individual’s specific health risks.
“Vigorous activity may not be safe for everyone, especially older adults or people with certain medical conditions. For them, any increase in movement is still beneficial, and activity should be tailored to the individual.”
Reference: “Volume vs intensity of physical activity and risk of cardiovascular and non-cardiovascular chronic diseases” by Jiehua Wei, Minxue Shen, Shenxin Li, Yi Xiao, Dan Luo, Gerson Ferrari, Dong Hoon Lee, Leandro F M Rezende, Jason M R Gill, Matthew N Ahmadi, Emmanuel Stamatakis and Xiang Chen, 29 March 2026, European Heart Journal.
DOI: 10.1093/eurheartj/ehag168
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