the Effects
of Testosterone
on the Body

Testosterone is a vital male hormone that is responsible for the development and maintenance of male attributes. Women also have testosterone, but in much smaller amounts.


The hypothalamus is the decision-maker. It puts in a request for how much testosterone should be produced. Read more.

Located above the kidneys, the adrenal glands make hormones, including a small amount of testosterone. Read more.

Sperm production is a never-ending job that requires a steady supply of testosterone. Read more.

Throughout a man’s life, testosterone affects his level of sexual desire. Is there truth to the “use it or lose it” theory? Read more.

The brain is the control center for testosterone production, housing the hypothalamus and pituitary glands. Read more.

Some of the side effects of testosterone replacement therapy include skin irritation and acne. Read more.

Testosterone helps a man’s body burn fat more effectively. Read more.

Testosterone may play a role in heart health, but studies of testosterone therapy and heart health are ongoing. Read more.

The pituitary gland takes orders from the hypothalamus and passes instructions to the testicles. Read more.

Testosterone is produced mainly in the testicles. Testosterone therapy can cause testicles to become softer and smaller. Read more.

Testosterone surges during adolescence to help the testicles and penis mature. Read more.

Your competitive spirit just may be influenced by the amount of testosterone in your body. Read more.

Losing body hair? Maybe your testosterone levels are dropping. Read more.

Testosterone helps increase muscle mass. It also helps make exercise more efficient. Read more.

Low testosterone can result in loss of bone density, increasing risk of fracture. Read more.

A blood test can tell you if your testosterone levels fall within the normal range. Read more.

It All
Starts Here
Another Hormone Maker
Sperm Production
Control Center
Skin Issues
Fat Metabolism
Heart Health
The Messenger
Main Source
Genital Transformation
Behavioral Traits
Beard and Body Hair
Muscle Mass
Bone Density
In the Bloodstream