Sitting is Bad, New Research Suggests

From a new study:

We prospectively examined sitting time and mortality in a representative sample of 17,013 Canadians 18-90 yr of age. [They were divided into five groups based on] daily amount of sitting time (almost none of the time, one fourth of the time, half of the time, three fourths of the time, almost all of the time . . . Participants were followed prospectively for an average of 12.0 yr for the ascertainment of mortality status. RESULTS:: There were 1832 deaths (759 of cardiovascular disease (CVD) and 547 of cancer) during 204,732 person-yr of follow-up. After adjustment for potential confounders, there was a progressively higher risk of mortality across higher levels of sitting time from all causes (hazard ratios (HR): 1.00, 1.00, 1.11, 1.36, 1.54; P for trend <0.0001) and CVD (HR:1.00, 1.01, 1.22, 1.47, 1.54; P for trend <0.0001) but not cancer.

I am pleased to see no problem with sitting one-fourth of the time. The CVD/cancer difference suggests the two diseases have different causes — which is consistent with cancer being due to environmental chemicals (e.g., cigarette smoke) and age (cancer risk goes up as the fourth power of age).

Related research from the same lab. My self-experimentation about standing. My one-legged standing (which I still do and am still studying).

Thanks to Dave Lull.

4 thoughts on “Sitting is Bad, New Research Suggests

  1. I have this image of you standing on one leg with your nose clipped drinking a mix of Kombucha and flaxseed oil with one hand and taking a math quiz on your laptop with the other ;-)

  2. IIRC, it appears sitting inhibits lipase production. Lipase is the hormone that transports fat out of the fat cells so your other cells can get energy, and it’s production is also inhibited by insulin. People w/ low lipase production over eat because there cells aren’t getting the energy they want and send the message that their starving.

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