鍛煉

A state of physical and mental health allows you to take part in exercise comfortably and enjoyably so that it doesn't hurt， so that you can look forward to it， and feel good afterwards.

If you are feeling down， exercise may help pick you up. Although researchers disagree on this issue， one review of past studies found that longterm exercise， especially when it includes long-lasting， strenuous1 training sessions2， has about as much of an effect on depression as psychotherapy3 .

Working out helps you deal with stress in your job， reationships or any area of life? possibly because exercise is a form of stress itself and helps condition your body to deal with it. When Australian researchers comparedpeople who did 30 minutes of aerobic4 exercise three times a week to thosewho practiced progressive relaxation techniques， they found that the former group responded better to acute stress and had lower blood pressure.

Even a little exercise can make you think less anxiously. Studies have shown that any amount of exercise， from a brisk 10 minute walk to an intense aerobics or weightlifting session seems to decrease feelings of anxiety.

Working out regularly may make you smarter now and lessen the possibility that you'll lose brain function as you age. According to a recent animal study at the University of Illinois， exercise can actually help the brain develop new cells.

In several studies， regular weight training or aerobic exercise was shown to improve the quality and duration5 of sleep. Naturally， this can make you less fatigued and be able to function better during the day.

Like meditation6， hobbies or any other leisure activity， exercise gives your mind a needed break from everyday thoughts， responsibilities and commitments.

Finally， there's one more reason to keep exercising. When you work out regularly， your body simply functions better--you are better， healthier and less likely to suffer painful physical conditions. And that just plain feels good.

身心健康能夠讓人們輕松愉快地參加體育鍛煉，而不會感到身體不適，人們因此樂于鍛煉，鍛煉之后又使心情舒暢，感覺良好。

當你感到沮喪時，鍛煉能使你重新振作。對此，盡管科研人員意見不一，但一份回顧性的研究表明:長期的體育鍛煉，尤其是長時間。高強度的訓練，治療抑郁癥的效果幾乎與心理治療法無異。

鍛煉能緩解工作、人際關系，甚至生活當中方方面面的壓力，其原因也許在于鍛煉本身就很緊張，它可以使身體靈活地應付壓力。澳大利亞研究人員對參與研究的兩組人的身體狀況進行了比較，其中一組人做有氧健身操，每次30分鐘，每周3次，另一組進行漸進式放松鍛煉，他們發現:前一組人能更好地應對突如其來的壓力，血壓也會低一些。

即使少量的鍛煉也能減輕人的焦慮。研究表明:鍛煉，無論其量大小，從10分鐘的健步行走到劇烈的有氧運動或舉重，似乎都能減少焦慮。

有規律地鍛煉能讓你變得更聰穎，還可以降低隨年齡增長大腦功能退化的可能性。伊利諾伊大學最近一項動物實驗表明:鍛煉其實有助于大腦新細胞的產生。

幾項研究表明:有規律地進行舉重練習或有氧鍛煉能改善睡眠質量，延長睡眠時間。自然，疲憊減少，從而使你在白天能更好地工作。

如同靜坐沉思、個人嗜好或其他任何休閑活動一樣，鍛煉有助于大腦在日常的思考、責任和負擔之余得到必要的休息。

最后，還有一條堅持鍛煉的理由。當你進行有規律的鍛煉時，你的身體部件會運轉得更好——你會更健壯，更健康、少受疼痛的折磨。那種感覺簡直太棒了!

注釋

1.strenuous adj.奮發的;緊張的

2.session n.會議;開庭

3.psychotherapy n. 精神療法;心理療法

4.aerobic adj.有氧的;依靠氧氣的

5.duration n. 持續時間;為期

6.meditation n. 沉思;冥想