Physiologists approach the study of this phenomenon in a more practical way. They believe that sleep is physiologically necessary for us, as a rest from the information obtained from the outside.
Brain – Computer
Imagine that your brain gets information from five senses and in that looks like a huge computer. Gigabytes of data are “pumped” into RAM and analyzed for 12, 14, 16 or 18 hours a day. Such work requires tension, even if one doesn’t notice it.
It is in the dream that a kind of analysis of the received, the removal of the unnecessary, the sending of material into long-term memory occurs. From the morning you feel fresh and rested. Ready to receive the next information “charge”.
The rest of the body
All organs of a person need rest to varying degrees. In addition to the above information processing in the brain, the rest of the body’s systems also require attention.
If you are deprived of sleep for 72 hours, hallucinations can begin, and if you extend insomnia, an imminent lethal outcome is possible.
In sleep the maximum relaxation of muscles occurs. The heart calms down and works in an easy mode for itself. The muscles are released from accumulated during the day fatigue, and the psyche from possible stresses.
Therefore, a healthy sleep is necessary for each of us as a way to rest and analyze the experience gained during the day.
How much to sleep
can’t be answered unequivocally. One people need 10 hours, and others feel great after 4. Physiologists along with doctors highlight averages in the region of 6-8 hours at a young age, about 6-7 hours at maturity and 4-5 in the elderly. The older the person gets, the need for sleep is less. Such an interesting pattern, still thoroughly unstudied.
How to get a good night
There are a few simple rules for a
good night’s sleep: the ability to relax. Yoga or stretching classes are good at this help.
1. The bed should be comfortable and the room is warm and well ventilated.
2. Before falling asleep, try to get away from all problems accumulated in a day. Leave it all for tomorrow.
3. Maximum relaxation of the body. This will help him rest faster. Even yoga gurus recommend relaxation, as a means for a good night’s sleep.
4. When waking up, do not fall in bed, and immediately get up.
5. Don’t be lazy to do gymnastics in the morning.