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Rest and sleepThe need to rest Alteration of sleep: the causes Promote sleep
- The need to rest
- Sleep disturbance: the causes
- Promote sleep
The need to rest
Rest and sleep are fundamental activities for the well-being of each person. The quality of life also depends on adequate rest: the recovery of strength, concentration, the feeling of well-being that derive from sleeping are the basis of a healthy life.
The need to rest and sleep must be supported because the absence of rest and sleep can give rise to a large number of disorders such as:
- ideo-motor slowdown;
- difficulty memorizing and remembering;
- tendency to make mistakes;
- depression and exhaustion of forces.
Consequently, in order to live, the human being must necessarily sleep.
Insomnia is a very frequent problem, especially among older people, and is characterized by the set of disorders that hinders the normal sleep process with the impossibility of falling asleep and repeated and morning awakenings.
The causes of insomnia are manifold and can be psychological or physical in nature. The quality of life is in any case very impoverished, the yield on the job decreases and the possibility of incurring accidents increases dramatically.
Generally, two types of sleep disorders are distinguished:
- primary insomnia;
- secondary insomnia.
Primary insomnia does not have a precise cause, while secondary insomnia is the consequence of psychological or physical illnesses (respiratory failure, chronic pain, etc.).
Some studies have shown that prolonged insomnia can be the alarm bell of a possible latent depression.
Sleep and rest are two activities that have some elements in common, but which differ in the peculiar mental condition they produce.
Rest allows the body to recover its strength and relax, but it is an activity that does not necessarily involve the act of sleeping. Resting means relaxing, decreasing the degree of attention, inactivating some areas of the brain and activating others while maintaining the state of wakefulness, that is, without falling asleep. Lying on the sofa reading a book or listening to music is a restful activity.
On the other hand, sleep turns off the consciousness of the external world and opens the doors of an "internal world".
During sleep the brain temporarily deactivates some centers and activates others. For information purposes only, remember that sleep is mainly characterized by two phases: REM phase and non-REM phase.
In the REM phase, characterized by rapid eye movements (sleep), sleep takes on particular characteristics: the dreaming (dream) activity becomes predominant and both circulation and respiratory activity undergo changes; this phase occurs 5 or 6 times per night.
In the non-REM phase, the brain is less stressed and sleep is more regular. Fatigue can prevent the person from entering the REM phase and for this reason subjects who get very tired during the day report not remembering dreams. An adult person should sleep about eight hours a day, infants can sleep sixteen, seventeen hours a day.
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