What hormone causes hair to grow 2024?
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Harper Collins
Studied at the University of Edinburgh, Lives in Edinburgh, Scotland.
As a dermatologist with a special interest in hair growth, I can tell you that the primary hormone responsible for hair growth is the androgen. Androgens are a group of hormones that include testosterone, and they play a pivotal role in the development of male characteristics, but they are also present in females, albeit at lower levels.
In the context of hair growth, androgens stimulate the hair follicles, promoting the transition from the resting phase, known as telogen, to the active growth phase, or anagen. This is particularly important for the hair on the scalp, where the anagen phase can last for several years, leading to the growth of long, thick hair strands.
However, the relationship between androgens and hair growth is complex. While they are essential for the growth of terminal hair, excessive levels of androgens can lead to conditions such as hirsutism, which is the excessive growth of hair in areas where it is typically not present in women, such as the face, chest, and back. This is often due to higher-than-normal levels of androgens, including testosterone, which can be a result of certain medical conditions or genetic factors.
In women, the ovaries and adrenal glands produce androgens, and the levels are tightly regulated by the body. When these levels are imbalanced, it can lead to an increase in hair growth in areas that are typically not as hairy. This is why women with conditions like polycystic ovary syndrome (PCOS) often experience hirsutism, as PCOS is associated with elevated levels of androgens.
Furthermore, the impact of androgens on hair growth is also influenced by the presence of enzymes like 5-alpha reductase, which converts testosterone into dihydrotestosterone (DHT). DHT is a more potent androgen and has a greater effect on hair follicles, particularly in the scalp, where it can lead to miniaturization of hair follicles and ultimately result in male pattern baldness, also known as androgenetic alopecia.
It's also worth noting that hair growth is influenced by a variety of other factors, including genetics, age, nutrition, and overall health. For example, certain genetic conditions can predispose individuals to have more or less hair growth, and nutritional deficiencies can impact the health and growth of hair.
In summary, androgens are the key hormones that drive hair growth, but their levels must be balanced to ensure healthy hair development. Excessive androgen levels can lead to unwanted hair growth in women, while imbalances can also contribute to hair loss conditions like androgenetic alopecia.
In the context of hair growth, androgens stimulate the hair follicles, promoting the transition from the resting phase, known as telogen, to the active growth phase, or anagen. This is particularly important for the hair on the scalp, where the anagen phase can last for several years, leading to the growth of long, thick hair strands.
However, the relationship between androgens and hair growth is complex. While they are essential for the growth of terminal hair, excessive levels of androgens can lead to conditions such as hirsutism, which is the excessive growth of hair in areas where it is typically not present in women, such as the face, chest, and back. This is often due to higher-than-normal levels of androgens, including testosterone, which can be a result of certain medical conditions or genetic factors.
In women, the ovaries and adrenal glands produce androgens, and the levels are tightly regulated by the body. When these levels are imbalanced, it can lead to an increase in hair growth in areas that are typically not as hairy. This is why women with conditions like polycystic ovary syndrome (PCOS) often experience hirsutism, as PCOS is associated with elevated levels of androgens.
Furthermore, the impact of androgens on hair growth is also influenced by the presence of enzymes like 5-alpha reductase, which converts testosterone into dihydrotestosterone (DHT). DHT is a more potent androgen and has a greater effect on hair follicles, particularly in the scalp, where it can lead to miniaturization of hair follicles and ultimately result in male pattern baldness, also known as androgenetic alopecia.
It's also worth noting that hair growth is influenced by a variety of other factors, including genetics, age, nutrition, and overall health. For example, certain genetic conditions can predispose individuals to have more or less hair growth, and nutritional deficiencies can impact the health and growth of hair.
In summary, androgens are the key hormones that drive hair growth, but their levels must be balanced to ensure healthy hair development. Excessive androgen levels can lead to unwanted hair growth in women, while imbalances can also contribute to hair loss conditions like androgenetic alopecia.
2024-06-11 04:20:31
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Studied at the University of Tokyo, Lives in Tokyo, Japan.
Women develop excessive body or facial hair due to higher-than-normal levels of androgens, including testosterone. All females produce androgens, but the levels typically remain low. Certain medical conditions can cause a woman to produce too many androgens.
2023-06-11 15:08:11
Julian Turner
QuesHub.com delivers expert answers and knowledge to you.
Women develop excessive body or facial hair due to higher-than-normal levels of androgens, including testosterone. All females produce androgens, but the levels typically remain low. Certain medical conditions can cause a woman to produce too many androgens.
