Spending many hours seated is linked with a higher risk of early death. Evidence shows that about 30 to 40 minutes of moderate to vigorous activity each day can bring that risk down to the level seen in people who sit less. Moderate to vigorous activity means movement that raises your heart rate and makes you breathe faster, such as brisk walking, cycling, or active gardening.
Any movement still helps. Light activity and even breaking up sitting with brief stands are better than doing nothing. The main message is simple, move more across the day, and aim for a daily block of activity intense enough to feel effort.
These findings are in line with global advice on physical activity, which sets a weekly target that most adults can reach by spreading movement across the week. The focus is on regular movement rather than perfect workouts.
British Journal of Sports Medicine – Joint associations of accelerometer measured physical activity and sedentary time with all cause mortality, a harmonised meta analysis – 2020
Researchers pooled data from wearable devices and found that higher sitting time is tied to higher mortality mainly in people who are less active. About 30 to 40 minutes per day of moderate to vigorous activity was enough to blunt the added risk seen with long sitting time.
World Health Organization, British Journal of Sports Medicine – World Health Organization 2020 guidelines on physical activity and sedentary behaviour – 2020
Global guidelines recommend regular weekly activity for adults and stress that reducing sedentary time is helpful at all ages. The document supports the view that every move counts and that even small increases in activity are meaningful.


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