Why do you lose a lot of hair in hot weather?

Abnormal hair loss is because the growth of hair is affected. Hair growth needs nutrition, and nutrition is transported by blood. If a person is ill for a long time, weak, insufficient blood gas and malnourished, his hair will temporarily fall off because of lack of nutrition and poor growth. Such people lose their hair easily and a lot. This may be the reason why some people lose their hair after a serious illness. People use their brains too much, or they are often absorbed and bored, or something happens, which greatly stimulates their brains and sometimes affects the supply and growth of hair nutrition. Because all the activities of the human body belong to the brain, the brain is stimulated, the activity is abnormal, and it can't work normally, which will inevitably stimulate the nutrition of the body and cause hair loss. Some people encounter things that are too exciting, their brains are strongly stimulated, and their spirits are very abnormal. Sometimes a large piece of hair on their heads falls out overnight. People say it's a "ghost shave", but it's actually like this. Hair growth has a cycle of growth and aging, and natural physiological alopecia actually occurs every day. However, some alopecia is caused by pathological factors. For young people, round baldness is more common, which is also commonly known as "ghost shaving". This is a kind of hair that suddenly enters the end of growth and suddenly falls off because of stress and emotion. In this case, the hair can regrow within three to five months after treatment. The cause of hair loss is related to nutrition, but also to mental stress or sudden mental stimulation. You can check the trace elements in the blood, and don't always be in a state of mental tension. You can often rub it with ginger where your hair falls, which can promote hair growth and have a comprehensive diet. Eat more hard-shell food and black sesame seeds! Adequate sleep can promote the normal metabolism of skin and hair, mainly at night, especially between 10- 2 am. Adequate sleep during this period can make the hair metabolize normally. On the contrary, hair metabolism and nutrition imbalance will lead to hair loss. Suggestion: Try to sleep no less than 6 hours a day and develop the habit of regular sleep. Pay attention to diet nutrition, often eat foods rich in protein and trace elements, eat more vegetables and fruits, and eat less greasy and sugary foods. Avoid excessive damage. Dyeing hair, perming hair and blowing hair will do some harm to the hair. Hair dye and perm also have a great influence on hair. Too many times will make the hair lose its luster and elasticity, and even turn yellow and dry. Ultraviolet rays in the sun can cause damage to hair, making it dry and yellow; Warm and humid air and cold air of air conditioner may be the causes of hair loss and gray hair. Too dry air or too high humidity is not conducive to protecting hair. Suggestion: The interval between hair dyeing and perm should be at least 3-6 months. Avoid sun exposure in summer, and pay more attention to protection when swimming and sunbathing. Wash your hair three to seven times a week in summer and 1 to three times a week in winter. When washing your hair, the water temperature should not exceed 40℃, close to the body temperature of 37℃. Do not use strong degreasing or alkaline shampoo, because this kind of shampoo has strong degreasing and dehydration, which is easy to make hair dry and scalp necrosis. Suggestion: Choose an acid-free natural shampoo that is not irritating to scalp and hair, or choose according to your hair quality. Do not use plastic combs, but boxwood combs and hard brushes are ideal, which can not only remove dandruff, but also massage the scalp and promote blood circulation. Maintain mental health, daily anxiety will lead to hair loss. The deeper the depression, the faster the hair loss will be. Suggestion: For women, keeping proper exercise will make their hair shiny and full of vitality. Men often take a deep breath, take a walk and do relaxation gymnastics. , can eliminate the mental fatigue of the day.