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1·Maintaining a level of daily physical activity may help mental functioning, says Carl Cotman, a neuroscientist at the University of California at Irvine.

加州大学欧文分校的神经学家卡尔·科特曼表示，每天保持一定的体育锻炼可以促进心理机能。

2·She has studied the mental functioning of aging persons for several years.

她对人类衰老的精神功能变化这一课题已经研究多年了。

3·Technically, any substance other than food that alters our bodily or mental functioning is a drug.

从专业角度来说，除食品外，任何能改变我们生理或心理机能的物质都是药物。

4·In general, eating a good breakfast is the best way for anyone to improve mental functioning later in the day.

总的来说，吃一个好的早餐是保持这一天中大脑敏锐的最好的方式。

5·The brain particular, the forebrains the organ of the mind. Mental functioning is one aspect of cerebral functioning.

大脑，确切的说是做为心灵器官的前脑的心理功能，是脑功能的一个方面。

6·For some time, scientists have believed that BDNF helps explain why mental functioning appears to improve with exercise.

有一段时间，科学家们都相信BDFN解释了精神功能似乎随运动而增强。

7·A succession of scientific studies of animals implies that physical activity has a positive effect on mental functioning.

对动物的一系列科学研究表明，体育活动对智力的发挥有积极作用。

8·Optimists are said to experience a higher level of both physical and mental functioning than their pessimist counterparts.

研究者认为乐观的人与悲观的人比较，启身体和精神机能两者达到较高水平。

9·Nearly 20 years ago a small study advanced the notion that listening to Mozart's Sonata for Two Pianos in D Major could boost mental functioning.

大约20年前，一个研究小组，考察了关于倾听莫扎特的D大调双钢琴奏鸣曲可以促进大脑机能的说法。

10·Scientists measured blood levels of the vitamin in a representative sample of 1, 766 people over 65 and assessed their mental functioning with a widely used questionnaire.

科学家通过广泛使用的调查问卷方式，测量了具有代表性的年龄超过65岁的1766个人血液中的维生素d的含量。