Sleep is very important for a person's strong immune system. Insomnia or lack of sleep will lead to hormonal imbalance, and over time, it will also lead to weight gain, slow reaction time, irritability, memory loss and other problems. In severe cases, there will be headache and depression. If you have difficulty sleeping, you must learn this two-minute sleep method of the US Navy. The success rate of this method is as high as 95%. It only takes about a minute and a half to relieve the tension in all parts of the body.

Step one:

Lie flat on the bed and relax facial muscles, including those around the tongue, chin and eyes. If you feel that you are frowning, you need to relax the center of your forehead and keep it smooth.

Step two:

Keep your shoulders as low as possible to stretch and relieve the tension in your neck. Then relax the big arm and the small arm, and the two arms alternate. If it's hard to find a feeling, try to tighten one arm, hold it for a few seconds, and then relax.

Step 3:

Take a deep breath to relax your chest and make your lungs feel full of air, which is a bit like abdominal breathing in yoga.

Step 4:

Relax your legs, like your arms, first relax your thighs, then your calves, and finally your ankles and toes.

Step five:

At this point, your whole body muscles are relaxed, and you can start to relax. Imagine the following pictures to help you organize your thoughts and prevent all kinds of interference:

Figure 1: On a calm lake, you are lying in a canoe, with nothing beside you except the clear blue sky overhead.

Figure 2: In a dark room, you are curled up in a black velvet hammock.

After completing these five steps, you can fall asleep in about two minutes. This innovative military method can help you sleep faster and longer.