What are the dangers of going to bed without drying your hair?

Many people do not have the habit of blowing their hair dry after washing it. This can have a huge impact on human health in the long run. If the hair is not blown dry, moisture will be very serious. Some people go to bed without blowing their hair dry. If this habit is not corrected, it will have very serious consequences and even lead to the occurrence of diseases. So what are the dangers of going to bed without blowing your hair dry?

1. Easily induce facial paralysis

Generally, the facial nerves are at their most relaxed and have the lowest resistance when sleeping at night. If they are stimulated by the cold of wet hair, it can easily affect the facial nerves behind the ears, causing local spasms and inducing facial paralysis. It may not be so obvious in the summer when the weather is warm, but in the winter when the weather is cold, the chance of facial paralysis is very high.

2. Cause colds and flu

Traditional Chinese medicine believes that human yang energy is weakest at midnight. After a day of exertion, women are easily physically and mentally exhausted, and their ability to resist cold is also reduced. Therefore, if you wash your hair with hot water before going to bed, the dilated capillaries will be stimulated by external factors, and the yang energy in the head will condense when it encounters cold, causing the body to suffer from cold. In addition, after washing your hair, a large amount of water will evaporate from your head, taking away a lot of heat from your body. If the immune system is low, heat dissipation will cause the capillaries in the upper respiratory tract to contract and reduce local blood flow. If the resistance of the upper respiratory tract is reduced, bacteria and viruses may take advantage of the opportunity to enter and cause upper respiratory tract infection and cold symptoms such as runny nose, nasal congestion, headache and even fever. Therefore, if you go to bed with your hair wet, you are more likely to catch a cold.

3. You may have headache or dizziness

If moisture is retained on the surface of the scalp for a long time, the scalp temperature will drop and affect the blood circulation in the brain. Therefore, you may feel numbness in the scalp in the middle of the night, accompanied by a dull pain. In the early morning of the next day, you are more likely to experience unexplained headaches or dizziness, and in severe cases, you may feel nauseous. If things go on like this for a long time, it may even cause a disease called "subscalp venous plexus inflammation".

4. Bacteria grow in pillows

Pillows are kept indoors for a long time and are prone to breeding bacteria. If you go to bed with wet hair, the moisture from the wet hair will penetrate into the pillow core. Over time, the pillow core will naturally turn yellow. The materials of pillows that people often sleep on are easily susceptible to moisture and mold. A humid environment is more conducive to the growth of bacteria. In this way, the pillow becomes a bacterial incubator, and the harm can be imagined. Although this sounds a bit alarmist, the truth is cruel.

5. Hairstyles that damage hair

Sleeping with wet hair is naturally a devastating blow to your hairstyle! When I woke up the next morning, my hair was a mess, inevitably tangled and impossible to cut or untangle.