In about the 1950s, most people thought of sleep as a passive, inactive part of our daily lives. Now we know that our brains are very active when were asleep. Sleep affects us in many ways, that we are just beginning to understand. For instance, it affects how we function from day to day, it also affects our physical and mental health. In these next few paragraphs, I will talk about how much sleep we need, and what happens to our brain when we sleep.
The amount of sleep someone gets depends on many factors, take age for example. …
