Sitting for more than 30 minutes at a time linked to higher risk of cancer death
Summary
A study of over 90,000 people found that sitting or lying down without moving for more than 30 minutes at a time raises the risk of dying from cancer. Taking short breaks to move, even lightly, can lower this risk.Key Facts
- Sitting or lying still for more than 30 minutes at once is linked to a higher chance of cancer death.
- Every extra hour of continuous inactivity increases cancer death risk by about 10%.
- Breaking up long periods of sitting with light activity, like slow walking or housework, can reduce cancer risk.
- Replacing one hour of sitting with light physical activity lowers cancer death risk by 12%.
- Replacing 30 minutes of sitting with moderate activity, such as normal-paced walking, lowers risk by 8%.
- Just 5 minutes of vigorous activity instead of sitting cuts cancer death risk by 22%.
- The study used data from wearable devices worn by UK participants over about 12 years.
- Researchers could not prove sitting causes cancer death because the study was observational.
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