◎鄭寺音

A long run leaves you hungry for fruit but a swim makes you crave biscuits, according to new research into how our bodies react to different types of exercise.

長跑讓你想吃水果，但是游泳會讓你渴望餅乾，根據針對身體如何回應不同種類運動的新研究指出。

Dr David Stensel, the country’s leading sport scientist, found that some athletes like runners do not feel hungry after sport because their effort suppresses the ghrelin hormone that stimulates appetite – meaning that the calories they burn off are not immediately replaced.

史丹瑟爾博士這位英國知名的運動科學家發現，一些運動員像是跑者，運動後不會感到飢餓，因為他們的成果壓抑刺激食慾的飢餓荷爾蒙，也就是說，他們燃燒的卡路里，不會立刻被取代。

People worried that their exercise regimes will cause them to lose too much weight should turn to swimming, which inspires a craving for fatty food like biscuits and chocolate, or weightlifting, which creates a hunger for potatoes, his research indicates.

擔心自己的運動飲食法會減輕太多體重的人，應該選擇會讓人想吃餅乾與巧克力等高脂肪食物的游泳，或是會渴求馬鈴薯的舉重，他的研究指出。

"The lighter you are, the better for long-distance running, so your body will crave watery foods that lower your body temperature by rehydration while not piling on the pounds," he said.

他說：「你的體重越輕，長距離跑步的能力越好，所以你的身體會渴求含水食物，藉著復水和降低體溫，而不會積累體重。」

"Similarly, if you are regularly swimming in cold water, your body benefits if your brain guides you towards foods that will give you a layer of protective fat."

「同樣地，如果你定期在冷水中游泳，如果你的大腦引導你，尋找富含保護性脂肪的食物，你的身體會受益。」

新聞辭典

crave：動詞，渴望獲得。例句：Many young children crave attention.（許多小孩渴望獲得注意。）

hunger：動詞，渴望。例句：I’ve never hungered after power.（我從來沒想要權力。）

burn off：片語，燃燒。例句：Running is an excellent way to burn off excess calories.（跑步是燃燒多餘卡路里的絕佳方式。）

自由時報-980226

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