Are You Really Awake?

When there is lack of sleep, the brain does anything to get the sleep that it needs. Sometimes, people enter micro sleep, which is when the brain is sleeping during wake hour. When our brains are asleep, the neurons switch themselves off and slow wave activity appears in the brains. That is very dangerous because neurons are responsible for processing and transmitting information by electrical signals. So, when the brain is asleep, our brains will not be able to process images we see.

Picture from

http://www.beatricebiologist.com/2011/05/sleep-deprivation.html