Sleep is the key to a content life Apparently, we all want to sustain a happy life. But what do we need to feel happy? Money? Friends? Relationships? While I was thinking about it, it dawned on me that something much simpler is a real key to success - sleep. The problem is, we are all well aware that good sleep is crucial for our well-being, but many of us still don't take it seriously enough and recklessly waste our sleeping time. Here's an astonishing fact - human is the only mammal which can postpone his sleep. If you were a lion or a dolphin, you'd fall asleep the exact minute you felt tired. Yet we prefer to consider sleep as a waste of time that could rather be spent on studying or having fun. Nevertheless, sleep is the secret to happiness for lots of reasons, such as its effect on our mental health, our brain activity and many many others. First and foremost, sleep influences our mental health directly. It has been scientifically proven that p eople who...