Sitting Too Much Ages You by Eight Years.

Sit less, move more. It's a motto worth repeating, especially as research accumulates showing just how detrimental prolonged sitting is for your body. Diabetes, obesity, heart disease, cancer and premature death are just some of the chronic conditions linked to sitting too much, and a new study hints at why: Being sedentary for long periods of time each day appears to accelerate aging at the cellular level. Among close to 1,500 older women included in the study, those who sat the longest were, on average, eight years older, biologically speaking, than women who moved around more often. Researchers from the University of California, San Diego (UCSD) School of Medicine gave activity trackers to a group of 64- to 95-year-old women and questioned them about their activity. Those who sat for more than 10 hours a day and got less than 40 minutes of moderate-to-vigorous physical activity had shorter telomeres. Every time a cell divides, the telomeres get shorter, which is why they're used as a measure of biological aging. Eventually, the telomeres become so short that the cell can no longer divide and dies. For this reason, telomeres are also sometimes compared to a lit bomb fuse In the women who sat for 10-plus hours a day, the telomere shortening was equivalent to about eight years of aging. In other words, too much sitting accelerated the aging process by about eight years. Short telomeres have also been linked with chronic diseases such as cancer, heart disease and diabetes.more