Study Links 30-Minute Sitting Bouts to Higher Cancer Death Risk, Cut by Up to 20%
Updated
Updated · RTÉ News · Aug 10
Study Links 30-Minute Sitting Bouts to Higher Cancer Death Risk, Cut by Up to 20%
3 articles · Updated · RTÉ News · Aug 10
Summary
People who sat for 30 minutes or more without a break showed a higher risk of dying from cancer, while brief standing or walking breaks were linked to lower risk.
Up to 20% lower risk was tied to breaking up sitting, but the study found an association rather than proof that uninterrupted sitting causes cancer.
Researchers tried to reduce reverse-causation bias by excluding the first 2 years of data, though undiagnosed illness, diet and other lifestyle differences could still affect the results.
UK Biobank data underpinned the analysis, but participants tend to be healthier and wealthier than the general population, limiting how broadly the findings apply.
The practical takeaway is modest: stand or move for 1 to 2 minutes every 20 to 30 minutes, alongside—not instead of—regular exercise.