The characteristics and functions of testosterone

We don’t only find testosterone in the male body, but also in a woman’s ovaries and adrenal glands. Because of this, it’s one of the androgens (male sex hormones) that exist in women. The main functions of testosterone are testicular and brain differentiation, as well as the development of primary and secondary sexual characteristics.

So, as we can see, testosterone isn’t only what many people commonly know as the male hormone. This hormone is present in both sexes at birth and plays its role in everyone’s life. Testosterone is a steroid hormone synthesized from cholesterol in the Leydig cells of the testes and in the theca cells of the ovary and in the zona reticularis of the adrenal glands. Testosterone plays important roles in health.

The functions of testosterone in men

Testosterone is the main sex hormone in men and has many functions:
• Developing the penis and testicles.
• Deepening the voice during puberty.
• Allowing pubic and facial hair to appear after puberty. Later, it may also play a role in baldness.
• Developing bone growth and strength.
• Influencing muscle size and strength.
• Plays a role in sperm production.

When male teens have low testosterone, then they may experience a somewhat different masculinization from most of their peers. For example, the genitals may not enlarge and their voices may not deepen.

In males, signals from the brain to the pituitary gland control testosterone production. The pituitary gland then signals to the testes that they need to produce this hormone. In addition, a “feedback loop” closely regulates the amount of the hormone in the blood. When testosterone levels are too high, the brain sends signals to the pituitary gland to reduce production.

The function of testosterone in women

As we already mentioned, we don’t only find testosterone in the male body; it’s also present in a female’s ovaries and adrenal glands. Therefore, it’s one of the androgens (male sex hormones) that are present in women. Experts believe testosterone has important functions in women, such as the following:

• Bone strength.
• Ovarian function.
• Sexual behavior, including libido.

For the ovaries to function well, it’s important for there to be a proper balance between testosterone, along with other androgens, and estrogen. Although the evidence is inconclusive, experts believe that androgens may play an important role in normal brain function (including mood, sexual desire, and cognitive function).

How does the body control testosterone?

The regulation of testosterone production is tightly controlled. This is because blood levels need to be maintained, although they’re usually highest in the morning and decrease during the day. The hypothalamus and pituitary gland are important in controlling the amount of testosterone produced by the testes. In response to gonadotropin-releasing hormone from the hypothalamus, the pituitary gland produces a luteinizing hormone that travels in the bloodstream to the gonads and stimulates the production and release of testosterone.

What occurs when the body produces too much testosterone?

When there’s too much testosterone in a man’s body, the following problems can occur:

• Low sperm count, reduced testes, and impotence.
• Damage to the heart and an increased risk of a heart attack.
• Increased prostate size and difficulty urinating.
• Acne.
• Fluid retention with swelling of the legs and feet.
• Weight gain, which may be related to increased appetite.
• High blood pressure and cholesterol.
• Insomnia.
• Headaches.
• Increased muscle mass.
• An increased risk of blood clots.
• Stunted growth in adolescents.
• Unusually aggressive behaviors.
• Mood swings, euphoria, irritability, etc.

In women, high levels of this hormone in the blood may also be an indicator of polycystic ovary syndrome. Women with this condition may notice increased acne, increased body and facial hair, balding at the front of the hairline, and/or increased muscle bulk.

As you can see, it seems that testosterone is a vitally important hormone in both men and women. For both sexes, it’s important to ensure a correct regulation of this hormone in the blood. If not, then problems such as the ones we’ve mentioned can occur.

 

yogaesoteric
February 23, 2022

 

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