小调查

小调查

Avoid Backlit Reading Before Bed

During a recent experiment, all participants read for five nights on an iPad and for five nights from a book. As anticipated, reading something in print made for a better sleep. Participants reading the iPad took about 10 minutes longer to fall asleep, secreted less sleep-inducing melatonin, and shifted their internal circadian clock. They also reported feeling more tired the next morning. （Scientific American）

睡前阅读电子书影响睡眠质量

所有的参与者都按照要求连续5 晚阅读平板电脑或纸质书。纸质书阅读组如预期般有着更好的睡眠。而平板组要花10 多分钟才能入睡，睡眠中分泌的褪黑激素也比较少，而且自身内在的生物钟也受到影响。同时他们还表示第二天醒来会感觉更累。

Eating Less Helps you Live Longer

Researchers in the United States say eating less can slow the ageing process of cells in the body. Calorie restriction caused real biochemical changes that slowed down the rate of ageing. Fewer calories slow down a natural mechanism that occurs in cells.（Voice of America）

少吃可以延缓衰老

美国的研究人员称，少吃能够延缓体内细胞的衰老速度。限制卡路里摄入真的会出现延缓衰老速度的生理变化。较少的卡路里减慢了细胞内核糖体的自然机制。

Light Music Reduces Fast Food Meal Size

Now a study has found that changing the ambiance of a fast food restaurant to more of a fine-dining atmosphere with light music lessened the amount of food people crammed into their pie holes. The patrons actually averaged 18 percent fewer calories per meal than the folks in the rowdy section—down from an average of 949 calories to 775.（Scientific American）

轻音乐降低进食量

有一项研究发现，将快餐店的环境气氛改装得更精美，会使人们减少填进肚子里的食物总量。实际上，相比在吵闹的区域进食的顾客，这里的顾客平均每餐少消费18% 的卡路里，从平均的949 卡路里降至775 卡路里。

Should You Charge Your Phone Overnight?

Frequent charging takes a toll on the lithium-ion batteries in our phones. And it's not because they are overcharged. Smart phones know when to stop charging. So in theory, any damage from charging your phone overnight with an official charger, or a trustworthy off-brand charger, should be negligible.（The New York Times）

给手机彻夜充电会影响电池寿命吗？

频繁充电会伤害手机的锂离子电池，原因并不在于它们会被过度充电。智能手机知道该在何时停止充电。因此，理论上用原厂充电器或信得过的品牌充电器为手机彻夜充电所造成的损害基本可以忽略不计。