Pedro Arantesrose


Testosterone is the primary sex masculine hormone.
Zettelkasten, August 07, 2021 (changes)


  • Testosterone is the primary sex masculine hormone.

  • It plays several important roles, such as:

    • The development of the penis and testes;
    • The deepening of the voice during puberty;
    • The appearance of facial and pubic hair starting at puberty;
    • Muscle size and strength;
    • Bone growth and strength;
    • Sex drive (libido);
    • Sperm production.
  • Adolescent boys with too little testosterone may not experience normal masculinization. For example, genitals may not enlarge, and the voice may not deepen normally.

  • Signals sent from the brain to the pituitary gland control the production of testosterone in men. The pituitary gland then relays signals to the testes to produce testosterone.

    • A feedback loop closely regulates the amount of testosterone in the blood. When testosterone levels rise too high, the brain sends signals to the pituitary to reduce production.
  • Testosterone is also essential in females. These hormones are thought to have important effects on ovarian function, bone strength, and sexual behavior.


RecommendationsDo you want to see all posts instead?
Mental Models
Mental models are frameworks, worldviews, representations, or explanations of how something works. They're how we understand the world.
Zettelkasten, April 06, 2021
Endocrine Glands and Chakras Correlation
Yoga looks at chakras as the body's energy points, which has the almost exact location of the hormone-secreting glands of the endocrine system. These glands connect your mind and emotions to your body.
Zettelkasten, August 14, 2021
Base Chakra
This chakra connects you with your basic survival needs, procreation, interest in life, and sex drive.
Zettelkasten, August 07, 2021
Fight or Flight
The fight or flight response is a biochemical reaction in animals that enables them to rapidly produce sufficient energy to flee or fight in a threatening situation.
Zettelkasten, August 14, 2021
Hormones are your body's chemical messengers. They're any member of a class of signaling molecules that regulates physiology and behavior.
Zettelkasten, August 07, 2021
It has several functions, such as relaying sensory signals, including motor signals to the cerebral cortex and regulating consciousness, sleep, and alertness.
Zettelkasten, August 14, 2021


Every Tuesday, I publish my most recent readings and thoughts. Subscribe to my newsletter if you want to follow topics about #startups, #mental-models, #cryptocurrencies, and more. You can also check my past issues on Revue.

By subscribing, you agree with Revue’s Terms and Privacy Policy