What are the factors that affect hair growth

Hair color, hair volume, and hair quality are all directly related to genetics. Some people may experience premature graying of hair, hair loss, and yellowing of hair due to genetic factors. When this happens, it will seriously affect the normal beauty of the human body. So many people want to improve these physical conditions. So what are the factors that affect hair growth? Today we will introduce it to you.

(1) Glands

① Gonads: Androgens play an important role in stimulating the growth of hair matrix cells.

② Adrenal gland: If the adrenal cortex secretes excessive amounts of male hormones, it can cause hirsutism in women. But it is also related to the function of the pituitary gland. If the pituitary gland function degenerates, the hair may decrease or fall out.

③Thyroid gland: The normal function of thyroid gland plays an important role in hair growth. If its function is impaired, the hair in the outer 1/3 of the eyebrow, the temporal part, will fall out. When its function is impaired, not only will the color fade to grayish white, but the hair will also decrease or fall out. Hair growth and loss are mainly controlled by the growth period of the hair itself, but are also affected by other factors such as race, endocrine, disease, mental state, gender, age, season, etc.

(2) Race:

Racial differences are a relatively obvious phenomenon. People of different races not only have different hair colors, but also different amounts and growth of hair. Baldness is very common among Caucasians, less common among Chinese, and even rarer among Indians.

(3) Heredity:

Hair growth tends to be roughly the same within a family. Male pattern baldness is closely related to genetics.

(4) Endocrine:

Androgens can act directly on hair follicles, leading to male pattern baldness. This phenomenon does not occur in people who lack male hormone stimulation (such as eunuchs). Estrogen has the effect of counteracting androgen, so women rarely experience baldness before menopause. When thyroid hormone is insufficient, the hair becomes thinner. When adrenal function is low, the hair decreases. Hypopituitarism can lead to complete baldness.

The above mentioned factors affect hair growth. After knowing these factors, the innate factors cannot be changed for sure. However, some acquired factors can be actively improved. This will allow our hair to grow healthier and we will be less likely to have yellowing, graying, or falling hair.