Testosterone

Definition

Testosterone is a steroid hormone primarily produced in the testes in males and in smaller amounts by the ovaries in females. It plays a crucial role in developing male reproductive tissues, secondary sexual characteristics, and overall health including muscle mass and bone density.

5 Must Know Facts For Your Next Test

1. Testosterone levels naturally decline with age, affecting muscle mass and energy levels.
2. Dietary factors such as zinc and vitamin D can influence testosterone production.
3. Excessive body fat can lead to lower testosterone levels due to increased conversion of testosterone to estrogen.
4. High-protein, low-carb diets may support healthy testosterone levels by reducing insulin resistance.
5. Chronic stress can reduce testosterone levels by increasing cortisol production.

Review Questions

• What impact does body fat have on testosterone levels?
• How do dietary factors like zinc influence testosterone production?
• Why might chronic stress affect testosterone levels?

Related terms

Estrogen:

A primary female sex hormone involved in the regulation of the menstrual cycle and reproductive system.

Cortisol:

A steroid hormone released in response to stress, playing a role in glucose metabolism and immune response.

Zinc:

An essential mineral important for enzyme function, immune system performance, and hormone production.