What causes insomnia in humans?

  Insomnia is a common sleep disorder. According to domestic and international statistics, more than 50% of young people have insomnia, and up to 70% of the elderly. Why do people have insomnia?
        Medical scientific research has concluded that insomnia has three general causes.
  1, environmental factors
  When a person at first change of location, or a rapid change in temperature, or the impact of excessive noise, etc., can cause sleep disorders.
  2, disease factors
  Such as toothache, cough, asthma, hives, etc. can interfere with sleep, resulting in insomnia.
  3.Psychological factors
  Tension, depression, excitement or sadness can cause insomnia.
  Some scholars studied 300 cases of insomnia patients, 85% of whom had mental disorders. The study found that for many insomniacs, psychological factors are the main factors leading to insomnia. In turn, insomnia affects a person’s psychological state. Insomnia makes a person less energetic, depressed, inattentive, depressed, impatient, anxious, nervous and irritable, which reduces one’s learning efficiency and work efficiency. Long-term insomnia can also cause a person’s perceptual ability to decline, memory loss, reduced flexibility in thinking, and reduced computing ability. It can also cause some undesirable changes in a person’s personality or produce an unbearable feeling of pain, which can seriously undermine a person’s confidence in life, cause pessimism, and even cause misanthropic thoughts and suicidal behavior. It can be said that insomnia is the great enemy of human health.
  How can we eliminate the disturbance of insomnia in our life? Medical doctors have suggested some ways.
  1, eliminate the fear of insomnia.
  Many insomnia patients go to bed at night emotionally tense, anxious, afraid of not being able to sleep, as a result, the more afraid of not being able to sleep, the more sleep, and so on, they form a conditioned reflex, resulting in a vicious circle. In this regard, psychologists pointed out that: insomnia is harmful, but the fear of insomnia and worry is more harmful.
  2, strict living rules and rest system.
  During the day to pay attention to strengthen physical exercise, no matter how tired do not sleep. Even if you do not sleep well at night to get up on time, so adhere to a few days, will gradually improve, do not doze off a tired.
  3, pay attention to bedtime physical hygiene.
  Before going to bed should not drink more water or strong tea, soak your feet in hot water or take a hot bath, the bedroom should be as quiet and comfortable as possible, which helps to fall asleep faster. The pillow should not be too high, otherwise it will hinder breathing.
  4, pay attention to pre-sleep mental health.
  Before going to bed, the spirit should be relaxed, the mood should be peaceful, not too many thoughts, to strive for a mind free of distractions. Keep your mind calm, you can also fall asleep naturally.
  5, timely medical consultation.
  Insomnia caused by disease, you should seek medical attention in a timely manner. Patients who have difficulty overcoming insomnia can take some sedative-hypnotic drugs according to their condition, which helps to adjust the balance of excitation and inhibition of the nervous system.