Does sitting lead to cancer?

Beware of the couch! Sitting for too long might cause cancer. Christine Friedenreich, an epidemiologist, studied the link between physical inactivity and cancer. Her study is highlighted in a USA Today article.

More than 90,000 new cancer cases a year in the United States may be due to physical inactivity and prolonged periods of sitting…

“A brisk daily walk of at least 30 minutes could lower a person’s risk over time for breast cancer and colon cancer,”

Friedenreich…found convincing evidence that regular physical activity reduces the risk of breast cancer, colon cancer and endometrial cancer by 25% to 30%. There’s some evidence that regular exercise also reduces the risk of lung, prostate and ovarian cancer

the more time people spent sitting, the higher their risk of dying early. “Even among individuals who were regularly active, the risk of dying prematurely was higher among those who spent more time sitting,”

More jobs require us to sit behind a desk for prolonged periods of time, relying on technology to carry out the simplest of tasks. You can avoid becoming a “victim” of this system by increasing your daily activity at work. Try to incorporate as much exercise into your day as possible: take the stairs whenever you can, stand more/longer, and spend more time outdoors!








Dr John Ellis MD

Board-certified anesthesiologist, with expertise in cardiovascular anesthesia and the implications of obesity and sleep apnea in anesthesia. See for professional information. Dr. Ellis has used the strategies in here to: (1) lose 120 lbs over 18 months, (2) stop all antihypertensive medicines, and (3) no longer need CPAP treatment for sleep apnea.

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