Unfortunately, the modern pace of life makes its own adjustments in the life of every person. We're all in a hurry somewhere. And if a person does not have time for something, he often takes time from sleep. Single cases of sleep deprivation do not lead to serious health consequences. And what threatens a constant lack of sleep? An unhealthy person is usually more irritable during the day, has a bad mood and is more prone to stress. Since the brain does not have time to fully restore its strength, then the attention and reaction deteriorates.