UCL Study Finds 3 Minutes of Vigorous Exercise Matches 90 Minutes Light Activity for Cancer Risk
Updated
Updated · Tech Times · Aug 12
UCL Study Finds 3 Minutes of Vigorous Exercise Matches 90 Minutes Light Activity for Cancer Risk
3 articles · Updated · Tech Times · Aug 12
Summary
Nearly 60,000 UK adults tracked for a median eight years showed 3 extra minutes of vigorous daily activity were linked to a 4% lower hazard across 13 inactivity-related cancers.
The BMC Medicine study found matching that reduction with light activity required more than 90 additional minutes a day, suggesting vigorous and moderate exercise are not interchangeable for cancer prevention.
Replacing 15 minutes of sitting or sleep with any movement cut cancer risk by 2%; swapping 30 minutes of sitting for movement lowered hazard by 8%, while standing delivered a smaller 2% to 3% benefit.
Researchers said vigorous effort likely triggers anti-inflammatory and metabolic effects that lighter activity does not, while the sedentary-risk link largely disappeared after adjusting for BMI.
The findings add to a July PLOS Medicine study tying each extra hour of uninterrupted sitting to a 10% higher cancer-death hazard, reinforcing guidance to break up sitting and preserve some high-intensity movement.