We spend a third of our lives doing it, yet it still isn't clear why we need to sleep. In fact, there’s so many things we don’t know about sleep, that we don’t have time to talk about them all today.
What we do know is that we can’t function without it. After missing just one night’s sleep, you are likely to find yourself feeling hungry, emotional and unable to concentrate. Decisions will become difficult to make, your reactions will slow, you may become forgetful, and your vision can even be affected. Going without enough sleep can weaken the immune system, making you susceptible to colds and other infections, and can even increase your blood pressure.
So it is clear that sleep is vital, but why? Scientists just can’t agree…
This is the first of our articles to be made available as an animated video.
An audio version of this article is also available!
An audio version of this article is also available!
What we do know is that we can’t function without it. After missing just one night’s sleep, you are likely to find yourself feeling hungry, emotional and unable to concentrate. Decisions will become difficult to make, your reactions will slow, you may become forgetful, and your vision can even be affected. Going without enough sleep can weaken the immune system, making you susceptible to colds and other infections, and can even increase your blood pressure.
So it is clear that sleep is vital, but why? Scientists just can’t agree…
