Sleep is regulated by your circadian rhythm, or body clock, located in the brain.睡眠由脑内的昼夜节律或生理时钟所管理。The body clock responds to light cues, ramping up production of the hormone melatonin at night and switching
A new database aims to pave the way for a better understanding of space health and medicine as more civilian missions launch.
Where you go to sleep is as important as when. Set yourself up for a restful sleep by: Turning off the electronics: Mobile devices and televisions emit light, affecting your circadian rhythm. To give yourself the best chance of getting a good night’s sleep, turn off your electronics 30–...
What Happens When We Sleep? Every night, almost everyone on the planet enters into a state of unconsciousness and paralysis. But what is really happening inside the body when we drift off? And what’s the impact if we don’t get enough slee...
What happens to your body when a defibrillator is used on you? What defibrillators feel like varies depending on which kind is used. The implanted kind, for example, “fire” when you’re conscious, and people say they’re intensely painful. Patients are haunted by the ...
What happens if daylight saving time is permanent? If daylight saving time was to be made permanent, there would be no changing of clocks twice a year. In addition to eliminating the practical hassle, this could have health benefits for many people. Although it might seem like gaining or los...
Getting sick is possibly the least fun thing that can happen to you... it's even worse than getting pulled over by the cops with expired registration or meeting the President with a big piece of spinach stuck in your teeth. But what really happens when you get sick...
what happens when we sleep? 英语学习 2019-02-24 13:50 what happens when we sleep? every night, almost everyone on the planet enters into a state of unconsciousness and paralysis. but what is really happening inside the body when we drift off?...
During rapid eye movement (REM) sleep your brain is busy dreaming, but to protect yourself from responding to the dreams (for example. screaming when something scary happens), your body's muscles are paralyzed. It's possible to actually wake up during the tail end of this cycle and be ...
What Happens When We Sleep? This may not be a word-for-word transcript. Every night, almost everyone on the planet enters into a state of unconsciousness and paralysis. But what is really happening inside the body when we drift off? And what’s the impact if we don’t get enough sleep...