Sit more.
It is becoming well accepted that, as well as too little exercise, too much sitting is bad for people's health. Now a new study has found that it is not just the length of time people spend sitting down that can make a difference, but also the number of breaks that they take while sitting at their desk or on their sofa. Plenty of breaks, even if they are as little as one minute, seem to be good for people's hearts and their waistlines.Caution!
The study, which is published online today (Wednesday 12 January) in the European Heart Journal [1], is the first in a large, representative, multi-ethnic population to look at the links of the total amount of time spent sitting down and breaks in sedentary time, with various indicators of risk for heart disease, metabolic diseases such as diabetes, and inflammatory processes that can play a role in atherosclerosis (blocked arteries).
It found that prolonged periods of sedentary time, even in people who also spent some time in moderate-to-vigorous exercise, were associated with worse indicators of cardio-metabolic function and inflammation, such as larger waist circumferences, lower levels of HDL ("good") cholesterol, higher levels of C-reactive protein (an important marker of inflammation) and triglycerides (blood fats).
However, the study also found that, even in people who spent a long time sitting down, the more breaks they took during this time, the smaller their waists and the lower the levels of C-reactive protein.
Do not read in the bathroom.
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