According to experts, this is a fairly common condition and may be related to nervous tension, circadian rhythm disorders or unhealthy living habits.
According to the National Sleep Foundation (USA), stress and anxiety are among the leading causes that make it difficult for the brain to "turn off" even when the body is tired. When stress lasts, the body increases the secretion of cortisol, a hormone related to the alert response, causing heart rate to be faster and the brain to maintain alertness at night.
In addition to psychological factors, using phones and computers before bed can also affect the ability to fall asleep. Blue light from the screen reduces the production of melatonin, a hormone that helps the body naturally fall asleep. Many people, although very tired, still have their brains stimulated by information, social networks or work that lasts until late at night.
Some conditions such as anxiety disorders, depression, chronic pain or consuming a lot of caffeine in the late afternoon can also make the body tired but difficult to sleep. In particular, sleeping at the wrong time for a long time can disrupt the natural biological clock.
Experts recommend maintaining a fixed sleep time, limiting the use of electronic devices about 1 hour before bedtime and avoiding using strong coffee and tea in the evening. Light exercise, reading books or listening to relaxing music can also help the body fall asleep more easily.
If insomnia lasts for many weeks, affecting daily life or spirit, people should go for an examination to assess related health problems.
