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Some people work or learn for a long time, and when they feel dizzy and fatigue, they will use cold water to wash head, because they think that the cold water can be refreshing and relieve sleepiness. In fact, this approach is not desirable. If you use the brain for a long time, the nourishment and oxygen in the brain will be largely consumed, and blood supply is not sufficient, then the nerve cells will feel fatigue, and then people will appear the symptoms of dizziness, drowsiness, weakness, and sleeping. If this time you use the cold water to wash the head, although the cold water will stimulate the scalp, you can feel temporarily sobering, it is detrimental to the blood supply to the brain, and even cause temporary diseases such as anemia, headache and other diseases, making people appear dizziness, pale face, and see stars and other phenomena, which is not conductive to the health. In addition, after outdoor activities, due to excessive physical exertion, people often sweat more. At this time, some people wash their face with cold water; at the same time, in order to cool down, they also use the cold water to wash head. While this feeling is very carefree, it brings some risks to the health. Because after the human physical agility is consumed, the body will produce a lot of heat, then if you use cold water to wash head, it will lead to pore blocking, and sweat cannot be discharged, so that hinders the body heat to dissipate into the atmosphere and the excretion of harmful substances generated by metabolism; at the same time, the human intracranial arteries to the pain is very sensitive. In the hot season, after movements, people are easy to sweat; this time, the blood vessels dilate, if you rinse head with cold water, it may cause intracranial vascular dysfunction, and even there is dizziness, and vomiting and other symptoms. Therefore, young people should pay attention to using warm water to wash head after a large amount of movements. In addition, the elderly people should not use cold water to wash head. In addition, when you are tired in work and study, you are best to go outdoors to move, and then do a few deep breathing exercises, so that you will suck into some fresh air, to improve blood circulation and supply some nutrients and oxygen to increase the excitability of the brain and the ability to work. How many knowledge Guild Wars 2 Gold Sale do you have on the games Guild Wars 2 Gold? If you want to know more about these, you can visit this website Guild Wars 2 Gold.
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