A sedentary lifestyle increases cancer mortality risk by 82%

American oncologists at the University of Texas have found that a sedentary lifestyle is independently associated with a higher risk of cancer mortality. Their study published in JAMA Oncology found that people who are the least physically active are 82% more likely to die from cancer than those who exercise regularly. The authors also found that at least 30 minutes of moderate activity per day (e.g. cycling) reduced the risk of cancer death by 31%. For low activity (e.g. walking), this reduces the risk of dying from cancer by 8%. 

To monitor physical activity, scientists asked 8002 volunteers over 45 years of age to wear a special device - an accelerometer - for seven consecutive days. Data from the device were collected from 2009 to 2013. None of the participants were diagnosed with any cancer at the beginning of the study. After five years of observation, 268 of them died of cancer. The analysis showed that the sedentary lifestyle was independently associated with a higher risk of dying from cancer.

Scientists also found that if participants did mild exercise or moderate-intensity exercises (at least 10-30 minutes per day), the risk of dying from cancer decreased (by 8 and 31 percent respectively).

The authors believe that a person should sit less and move more. "Patients say they don't have time for physical exercise," says Dr. Susan Gilchrist, head of the study. - I always advise them to stand for five minutes every hour at work or to climb stairs instead of the elevator. This may not be enough, but the results of this experiment suggest that even mild physical activity has the advantage of reducing the risk of cancer death.

June 19, 2020, 10:56 a.m.

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