Scientists have named the main problem of which difficulty with sleep

In the research of experts from the University of Iowa took part 436 volunteers. The participants answered a series of questions about anger and temper. Then volunteers were divided into groups depending on how they coped with anger. After the researchers monitored the participants ‘ sleep.

The study showed that people who controlled their anger and kept his composure under pressure, slept better. People who suppressed his anger, had trouble sleeping.

In General, the hot-tempered people, whom it was difficult to cope with his anger, sleep quality was low.

Probably, such people sleep prevent negative emotions. In addition, anger activates heart activity, which in turn complicates the process of falling asleep.

Previous studies have shown that sleep problems can cause anger. People with sleep disorders are more difficult to control their emotions. That is, a vicious circle.