Cold Weather Exercise Burns More Calories寒冷天氣鍛煉燃燒更多熱量

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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.”P(pán)hysical 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.

每個(gè)人都知道鍛煉對(duì)保持健康很重要。（剩余459字）