Wearing socks will speed up sleep. Theoretically, keeping your feet warm will dilate the blood vessels around your body, thus lowering your blood temperature. This process is called vasodilation.

Under normal circumstances, the core temperature drops to 35.8 degrees Celsius, which is 65,438 0.2 degrees Celsius lower than the average body temperature. Keep the bedroom cool when sleeping. Researchers say that wearing socks to sleep or soaking feet before going to bed helps the elderly who have no sleep difficulties to fall asleep faster.

Sleeping in socks can also prevent the onset of Raynaud's disease. Raynaud's disease is a blood circulation disorder caused by the contraction of arteries or capillaries caused by pressure or cold. At the onset, the hands and feet are numb, white or blue.

Generally speaking, people with this disease should keep their limbs (hands and feet) warm. Besides wearing socks, they can also keep warm by taking a warm bath or a thermos bottle, but remember not to wear tight socks, because this will reduce blood circulation.

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Precautions for sleeping at night:

1, don't sleep topless.

The skin humidity of human abdomen and chest is often constant, because even if it is too hot to sleep, people will often have symptoms such as abdominal pain and diarrhea due to insufficient warmth in the chest and abdomen. Therefore, no matter how hot the weather is, cover your chest and abdomen with quilts or blankets to avoid catching cold and getting sick.

Don't do a lot of exercise before going to bed.

Taking part in more exercise at ordinary times can improve sleep, but don't wait until you go to sleep to exercise, because exercise can raise the body temperature, promote the secretion of adrenaline, make people refreshed and difficult to fall asleep. Therefore, exercise should be carried out four hours before going to bed.

Don't sleep on the floor

In summer, because of the cool weather, many people lie on the concrete floor or wet ground. In fact, it is very easy to be attacked by moisture and cold pathogens, leading to rheumatoid arthritis, backache and leg pain or eyelid edema, which is very harmful to the body.

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