As little as five minutes of exercise a day in the great outdoors can improve mental health, according to a British study published in the journal Environmental Science and Technology.

英国一项研究显示，只要每天在户外运动五分钟，人的精神状态就会改善，不但心情会保持舒畅，而且有助增强自信心。有山有水的环境益处尤其明显。

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His article in the journal Environmental Science and Technology is out today.

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Not surprisingly, the report, just published in the prestigious American Chemical Society journal Environmental Science and Technology, has put the cat among the pigeons, since there are many new companies gearing-up to produce algal biofuels.

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In one study published in the journal Environmental Science and Technology last year, Dr. Micklewright and his team examined how the color of the imagery participants viewed while cycling would affect their mood and perceived feelings of exertion.

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