Is it harmful to wash your hair with cold water?

Most young people like to wash their hair with cold water, especially in summer or when working overtime. Some people feel that washing their hair with cold water can make them feel cooler and drive away sleepiness. Little do people know that washing hair with cold water cannot wash away the grease and stains on the scalp. Instead, the cold water is more likely to irritate the scalp, sometimes causing headaches or dizziness, especially in women. So is it harmful to wash your hair with cold water? Let's take a closer look.

1. Washing your hair with cold water doesn’t clean it thoroughly

Washing your hair with cold water will not wash it clean. The sudden stimulation of cold water causes the skin capillaries and superficial blood vessels in the dermis to contract, which in turn leads to the contraction of sweat pores, blocking the normal metabolism of the skin. The dirt that could have been removed and some metabolites hidden in the sweat pores that should have been discharged will remain in the body. Over time, you will find that not only will your hair not be washed clean, but using cold water to wash your hair for a long time will also cause hair loss due to metabolic disorders.

Washing your hair with warm water is more effective. Warm water can dilate the skin capillaries and superficial blood vessels in the dermis, open the sweat pores, and promote the excretion of metabolic waste.

2. Washing your hair with cold water causes headaches

Our scalp is the place with the most dense nerves. If we wash our hair with cold water for a long time, it will stimulate the nerves and cause changes.

The brain's excitation and inhibition have certain limits. If the parts that should be inhibited are constantly stimulated, the rules of excitation and inhibition will be disrupted, causing neuralgia. There are three main types of neuralgia: functional headaches, vascular headaches and tension headaches.

Although we often say to wash your hair frequently, it is not necessary to wash your hair every day. If it is summer, you can wash your hair more frequently. In the north or winter, washing it 2-3 times a week is enough.

3. Washing your hair with cold water causes scalp diseases

Washing your hair with cold water before going to bed is not a good habit. In spring and summer, the human body consumes a lot of energy, is prone to fatigue, and has weaker immunity against diseases. Therefore, washing your hair before going to bed will cause moisture to be retained in the scalp. The heat dissipated by the head will condense, which can easily lead to qi stagnation, blood stasis, and meridian blockage over time.

The above is a detailed introduction to whether it is harmful to wash your hair with cold water on a regular basis and the main disadvantages of washing your hair with cold water on a regular basis. For those who are used to washing their hair with cold water, they should try not to wash their hair with cold water. Especially for women, during menstruation, they should not wash their hair with cold water to avoid causing heart and abdominal pain or migraine.