What are the causes of hair loss?
What causes hair loss? Hair loss can be caused by many factors. Normally, each day we lose about 40-90 strands of hair, and new hair grows to replace it. However, some people lose a lot of hair, to the point where it is noticeable that it is abnormal, and their hair is thinning. Before we look at how to fix hair loss, let’s find out the causes of hair loss first. The causes of hair loss are as follows:
Internal factors
- Hereditary hair loss
Androgenetic alopecia can occur in both males and females, with an incidence of up to 80% in males and 50% in females. The cause of hereditary hair loss is an increase in the level of an enzyme on the scalp. This enzyme is responsible for changing the hormone testosterone to DHT (Dihydrotestosterone). DHT is the hormone that causes the hair on the head and neck to become smaller. If a person with hereditary hair loss has an increased level of this enzyme, the hair on the scalp will become smaller, thinner, and shorter, which can lead to hair loss and thinning.
- Increasing age
As we age, our bodies undergo changes, especially the production of sex hormones, which can affect hair loss and thinning hair. Normally, hair is densest and thickest until around age 30. After that, as we age, the density and size of the hair begins to decrease. The life cycle of the hair begins to shorten, causing hair loss to become more frequent and thinner, until the appearance of thinning hair or baldness is clearly visible.
- Some diseases that can cause hair loss
Some diseases can cause hair loss, such as skin diseases of patients, thyroid disease, etc., which cause inflammation that interferes with hair growth, including various infections such as bacteria, fungi, and viruses of the scalp. In addition, there สนใจสมัคร? คลิกที่นี่เพื่อเริ่มต้น are other physical illnesses that affect hair growth, causing hair loss and thinning, such as syphilis infection, HIV, immune disease SLE, skin disease DLE, and anemia.
External factors
- Taking certain medications or vitamin supplements
Some types of medicines, such as acne medicines that contain certain vitamins, blood pressure medicines, birth control pills, cancer medicines, etc., including some vitamins or supplements that are consumed in excess can cause hair loss and thinning. If you stop taking these medicines or supplements, hair loss may return to normal.
- Accumulated stress
Accumulated stress problems affect the body and mind. It can result in one of the causes of hair loss. Because when there is stress, the body produces the hormone cortisol or stress hormones, causing the hair to become weak. In addition, some people with accumulated stress may have behaviors that damage their own hair, such as unconsciously pulling their hair (Trichotillomania), which can cause hair to thin.
- Lack of nutrients or minerals
Lack of nutrients or those who are losing weight in the wrong way can make hair more brittle and thin. Those who have hair loss from malnutrition should take iron supplements because iron affects hair growth, as well as vitamins such as vitamin A, vitamin B, protein, etc. These nutrients will help strengthen hair and nourish the scalp. In addition, those who lack iron or vitamins may have other symptoms such as brittle nails, fatigue, etc.