She suspects there may be a link between humans' increased exposure to light at night and the increase in rates of obesity nationwide.

她怀疑，人们夜晚在灯光下暴露时间的增多与全国肥胖比率的增加可能存在着某种联系。

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When composition, light, and exposure are all superb, "best" truly is in the eye of the beholder.

当构图、光线及曝光都十分出色时，“最佳”实在是个人有个人的标准。

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A long exposure time captured stars in this photo-and the brief balanced light from both a fading moon and a brightening eastern sky.

长时间曝光捕捉到照片中的星星，以及淡出的月亮和明亮的东部天空短暂的平衡光。

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Exposure to light increases the levels of dopamine in the eye and this seems to prevent elongation of the eyeball.

BBC: Massive rise in Asian eye damage

The result is expressive background defocusing and sophisticated bokeh, plus the flexibility to use short, blur-free exposure times in low light.

ENGADGET: Olympus Stylus XZ-2 is a digital compact stuck in a mirrorless camera's body, we go hands-on

Compared with darkness, exposure to red light boosted alertness: The EEGs showed a significant reduction in brain-wave activity associated with sleepiness after five minutes.

WSJ: The Secret to An Afternoon Energy Boost: Red Lighting