Adults who are not physically active and sit for more than 8 hours a day have a higher risk of developing colorectal cancer, with the risk being higher in U.S. populations than in Korean populations.

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Pro

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Against

Evidence from Studies

Supporting (1)

53

Community contributions welcome

53

Do the associations of sedentary time with colorectal cancer risk differ by physical activity level and vice versa? A cross-sectional study of two large population-based surveys.

Cross-Sectional Study

Human

2026 Feb

For people who don’t move much, sitting too long (over 8 hours a day) makes them much more likely to get colon cancer — and this study proves it, both in the U.S. and Korea. But if they move more, even if they sit a lot, their risk goes down.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Do the associations of sedentary time with colorectal cancer risk differ by physical activity level and vice versa? A cross-sectional study of two large population-based surveys.

Score: 53

DOI: 10.1016/j.puhe.2025.106115

Similar Assertions

Adults who sit for more than 8 hours a day but engage in at least 2000 MET-minutes of physical activity per week have a significantly lower risk of developing colorectal cancer compared to those who are less active.

53

0

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People who sit for long periods and are not physically active may have a higher risk of colorectal cancer, and this risk appears to be even higher for Black and Asian individuals compared to others.

53

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53

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53

0

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