"Über krystallinisches mannliches Hormon aus Hoden (Testosteron) wirksamer als aus harn oder aus Cholesterin bereitetes Androsteron" [On crystalline male hormone from testicles …

Sep 1, 2022 · Testosterone is a hormone that your gonads (testicles or ovaries) mainly produce. Testosterone levels are naturally much higher in males.

Mar 17, 2023 · The hormone, which is found in both men and women, is most often associated with sex drive, but it also affects bone and muscle mass.

Dec 19, 2025 · Testosterone, hormone produced by the male testis that is responsible for development of the male sex organs and masculine characteristics, including facial hair and …

Oct 30, 2025 · High or low testosterone levels in men can cause symptoms and signs of weight gain, osteoporosis, decline in sexual desire, and a decline in physical energy and stamina. …

Jul 18, 2023 · Testosterone is a sex hormone that regulates sexual development, muscle mass, and red blood cell production. It originates mainly in the testicles and influences sex drive, fat …

May 22, 2023 · What is testosterone? Learn how it works, and what's normal for free and total testosterone levels.

Apr 3, 2024 · Testosterone production in men peaks in your teen years and remains high until your mid-thirties when T levels naturally start to decline.

Testosterone is a hormone made by the testicles. It is important for a man's sex drive, bodily development, and physical appearance. Certain health conditions, medicines, or injury can …

Jan 19, 2024 · Testosterone therapy — Explore the potential benefits and risks of increasing your testosterone level.