Why We Sleep by Matthew Walker

In this video, we learn about 0:00 Introduction 1:39 Our internal clock tells us when we should sleep or eat.2:57 Not getting enough sleep can lead to various dangerous diseases.4:09 Every animal's sleeping needs are different.5:39 Sleeping less reduces your ability to focus.6:39 Sleep disorders can be very dangerous.8:05 Take a warm bath before sleeping9:17 Conclusion