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This is SCIENCE IN THE NEWS in VOA Special English. I’m Shirley Griffith.

And I’m Bob Doughty. Today, we will talk about diet and weight loss（偏/啊/一點更美味）. Exercise is important if you want to get in（可連讀） good shape（應該shape重讀，而不是good重讀）. But experts （是e，不是i的音）say exercise alone is not enough if your goal is to lose weight.

It is that time of year again! Warm weather has returned to Earth’s northern （r似乎沒有卷舌）hemisphere. Summer is a time when people of all ages feel like getting their swimwear and going to the nearest swimming pool or seashore. But first, there is that troublesome little thing called winter weight gain（weight應該重讀）. Many of us gain weight（weight應該重讀） because of inactivity（na可以連讀） during the winter.