The growth of eyebrows is also regular and cyclical. So, how long is the growth cycle of eyebrows? This is a question that many girls who love beauty want to know. Many girls feel that their eyebrows are not good-looking, or that they are too short, grow too slowly, have no shape and are difficult to trim, so they try to find ways to make their eyebrows longer, thicker and better-looking. What factors are related to the growth of eyebrows? There are also many folk remedies in daily life, such as rubbing eyebrows with ginger slices every night, and the eyebrows will grow and increase after a few months; and shaving eyebrows and letting them grow again will also grow quickly, etc. So, how long is the growth cycle of eyebrows? The growth period of eyebrows is about 2 months, and the resting period can be as long as 3-9 months, after which they fall off naturally. The rate of hair growth is affected by factors such as gender, age, body part and season. For example, hair grows about 0.3-0.4 mm per day, armpit hair grows 0.2-0.38 mm, and eyebrows grow about 0.2 mm. Hair growth is most vigorous between the ages of 15 and 30, and grows slightly faster in summer than in winter. In addition to relying on the blood circulation around the hair follicles to supply nutrition, hair growth is also controlled and regulated by nerves and endocrine system. Endocrine has a significant impact on hair, and male hormones have a certain promoting effect on the hair follicle sheath. The endocrine system includes the pituitary gland, gonads, thyroid gland, adrenal glands, etc. Therefore, mental stress and physiological reasons can also lead to eyebrow loss or thinning. The quality of eyebrow growth is closely related to the hair follicles and hair papillae. The basal part or papilla part of each normal hair follicle has a varying number of blood vessels extending into the hair bulb. These blood vessels and the vascular branches around the lower part of the hair follicle communicate with each other to form a capillary network towards the papilla. The capillary network under the papilla on both sides of the hair follicle and the capillary network in the connective tissue layer of the hair follicle form a rich vascular plexus. Blood passes through these vascular networks and vascular plexuses to provide the material nutrients needed for hair growth. The above content introduces in detail how long the eyebrow growth cycle is, what factors affect the quality and speed of eyebrow growth, and we need to remind all the beauty-loving girls not to use cosmetics indiscriminately or trust various folk remedies to avoid losing both the wife and the army, which will not be worth the loss. |
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