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科学家研究发现，与在跑步机上锻炼几个小时相比，忙于参加朋友们的社交活动可能更有利于保持苗条身材。宅男宅女们，别再闷在家里了，是时候呼朋唤友，开始一场说走就走的旅行了。
Keeping a busy social life amongst lots of friends may keep people slimmer than spending several hours on a treadmill， according to scientists.
Scientists believe social activities can release a brain chemical that converts white fat into brown fat. Brown fat burns calories to generate heat， while white fat stores calories and makes us fatter.
Converting white fat into brown fat is very difficult， normally requiring long-term exposure to cold conditions or activating part of the body’s nervous system. However， scientists from Ohio State University think that having a busy social life is an even more effective way of carrying out this conversion.
Explaining how new technology had threatened face-to-face socializing， scientists added， "It’s not just a sedentary lifestyle and high calorie foods， but an increasing lack of social engagement. Loneliness is a profound factor for cancer and death； it’s on par with cigarette smoking. Social engagement is very important. "
Keeping a busy social life amongst lots of friends may keep people slimmer than spending several hours on a treadmill， according to scientists.
Scientists believe social activities can release a brain chemical that converts white fat into brown fat. Brown fat burns calories to generate heat， while white fat stores calories and makes us fatter.
Converting white fat into brown fat is very difficult， normally requiring long-term exposure to cold conditions or activating part of the body’s nervous system. However， scientists from Ohio State University think that having a busy social life is an even more effective way of carrying out this conversion.
Explaining how new technology had threatened face-to-face socializing， scientists added， "It’s not just a sedentary lifestyle and high calorie foods， but an increasing lack of social engagement. Loneliness is a profound factor for cancer and death； it’s on par with cigarette smoking. Social engagement is very important. "
