Sleep is necessary for a normal healthy life – everyone knows that. You can eat the healthiest food and not get out of the gym, but if you do not get enough sleep all the time, all efforts will go down the drain.
1. Our ancient ancestors set asleep more time because their daily rhythm depended on the rising and setting of the sun. Today we have an artificial light that allows us to prolong the period of wakefulness and, therefore, reduce the time of sleep. And although the requirements in a dream for each organism are individual, many experts insist that healthy sleep should last about nine hours a day. Continue reading