How about a cool shampoo? It's not clean to wash your hair with cold water

summary

It's hot in summer. Many people like to wash their hair with cold water. It's very cool and cool, especially for male friends. It's common to wash your hair with cold water. I don't know that this kind of harm has come to you quietly. Today I'll tell you about the harm of washing your hair with cold water in summer.

How about a cool shampoo? It's not clean to wash your hair with cold water

First: if you can't wash your hair cleanly with cold water, the sudden cold stimulation of cold water causes the skin capillaries and superficial dermal blood vessels to contract, leading to the contraction of pores, blocking the metabolism of normal skin. The dirt that can be removed and some metabolites that should be excreted in pores will stay in the body. Over time, you will find that not only the hair can not be washed clean, but also the metabolic disorder will lead to hair loss after long-term use of cold water.

Second: cold water shampoo causes headache. Our scalp is the place with the most nerves. If we wash our hair with cold water for a long time, it will stimulate the nerves to change. There is a certain limit to the excitation and inhibition of the brain. If we constantly stimulate the parts that should be inhibited, it will make the excitation and inhibition law disordered and cause nerve headache. Nerve headache is divided into three categories, namely functional headache, vascular headache and tension headache.

Third: cool water shampoo cause scalp disease, wash your hair with cool water before going to bed, this habit is not desirable. In spring and summer, the human body consumes a lot of energy and is easy to be tired, and its immunity against diseases is weak. Therefore, washing your hair before going to bed will make the water stay on the scalp, and the heat dissipation of the head will be condensed. Over a long period of time, it is easy to cause qi stagnation, blood stasis, and blockage of channels and collaterals.

matters needing attention

The harm of cold water shampoo is so great, do you dare to wash your hair, so I would like to remind you that no matter how hot the weather is, it is best not to use cold water, and do not wash your hair before going to bed at night, which is very serious for head injury.