Out of the 5 sleeping stages, the most suitable for waking up are the 1st, 2nd, and 5th. Getting up during these stages will help a person feel more rested. Conversely, any sharp noise that makes you wake up disturbs your sleep and brings a lot of stress to the body.

During the day, a person feels irritable, and vision, memory, and reactions to events worsen. Over time, it can provoke cardiovascular diseases, strokes, neurological disorders, and intellectual decline. To be able to wake up without an alarm clock, it is necessary to accustom yourself to a certain regime. For example, you should go to sleep at the same time.

9 Strange Scientifically Proven Ways to Stay Healthy