D. It Can make blood-brain barrier more permeable.

它可以使血脑屏障更具渗透性。

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Sunlight provides your body with much needed vitamin d, and stimulates production of endorphins and other brain chemicals that relieve depression and improve moods.

阳光为你的身体提供所需的维他命d，而且刺激安多芬以及其他一些大脑化学物质的产生，从而能够舒缓压力和改善心情。

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Seeing the two images together creates a sense of depth that the brain perceives as 3-d, without the help of special eyeglass lenses.

左右眼同时看见这两个图像时，就会产生一种大脑认为的立体层次感，而无需佩戴专门眼镜。

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Summly -- the brain child of London-based boy genius Nick D'Aloisio -- delivers automated snapshots of news stories to its users on mobile devices and formats articles for the small screen.

CNN: Yahoo! to buy teenager's brain child

Several years ago he read a paper in a scientific journal by a Japanese scientist who had discovered D-serine in key areas of the brain but didn't know why it was there.

FORBES: Repairing The Brain

Several years ago he read in a scientific journal a paper by a Japanese scientist who had discovered D-serine in key areas of the brain but didn't know why it was there.

FORBES: Repairing The Brain