Cold Weather Exercise Burns More Calories寒冷天气锻炼燃烧更多热量

Everybody knows that exercise is important to keep us healthy. It reduces2the risk of heart disease3， and helps us to keep a healthy weight. It also reducesstress and makes us happier. Doctors say that exercising in cold weather is evenbetter for us. Going for a walk or even a swim when it’s very cold outside doesmore good for our physical and mental4 health. The reason for this is that the coldgives our heart a better exercise. Dr. Angela Pepdjonovic， from a hospital in NewYork， told us why. She said， “Your heart has to work a little bit harder to pump5blood around your body in the cold. This can help you get more endurance6 overtime.”

Dr. Pepdjonovic said cold-weather exercises can help the body burn caloriesfaster. She said，“As your body needs to work harder to keep warm， it is true thatyou will use up your calorie faster by exercising in the cold.”Physical activity incold temperatures can make our metabolism7 faster， which helps us lose weight.In the cold， our metabolism slows down， so we can keep fat and warm. When youare exercising in the cold， natural light helps to reduce your stress. This isespecially8 so for people who had Seasonal Affective Disorder （S.A.D.）. This is atype of depression9 caused by the shorter， darker days of winter. It is morecommon in people who live far from the equator10.

每个人都知道锻炼对保持健康很重要。它可以降低患心脏病的风险，并帮助我们保持健康的体重。它还能减轻压力，让我们更快乐。医生说，在寒冷的天气里锻炼对我们更有好处。当外面很冷的时候去散步甚至游泳对我们的身心健康更有好处。这样做的原因是寒冷会加强对心脏的锻炼。纽约一家医院的安吉拉·佩德约诺维奇博士告诉了我们原因。她说“： 在寒冷的天气里，你的心脏必须更加努力地将血液输送到全身。随着时间的推移，这可以帮你增强耐力。”

佩德约诺维奇博士说，寒冷天气下的锻炼可以帮助身体更快地燃烧卡路里。她说“： 因为你的身体需要更努力地工作来保暖，所以在寒冷的天气里锻炼确实会更快地消耗你的卡路里。”在低温下进行体育锻炼可以加快我们的新陈代谢，从而帮助我们减肥。在寒冷的情况下，我们的新陈代谢减慢，所以我们才能保留脂肪并保暖。当你在寒冷中锻炼时，自然光有助于减轻你的压力。对于患有季节性情感障碍（S.A.D.）的人来说尤其如此。这是一种由冬季白昼变短、变暗引起的抑郁症。它在远离赤道的人们身上更为常见。

（英语原文选自：mailbreakingnewsenglish.com）