The Ultimate Testosterone Glossary For Men's Health


A generic term referring to any compound governing the development of male characteristics in vertebrates by binding to androgen receptors.

Circadian Cycle

The endogenous biological rhythm that oscillates at around 24 hours.


A hormone released in response to stress or low levels of glucocorticoids.


Rate-limiting molecules that act as catalysts to many biological reactions and metabolic processes.


The primary female sex hormone.

Free Testosterone

Testosterone that is unbound by a protein.

Follicle-stimulating hormone (FSH)

one of the gonadotropins synthesized in the anterior pituitary and responsible for reproductive regulation and maturation.

Growth Hormone (GH)

A peptide hormone that stimulates growth.


A potent endogenous antioxidant that prevents damage to specific tissues by fighting free radical exposure.


A chemical messenger that transports a signal from one cell to another.


Part of your brain that links the nervous system to the endocrine system, among many other functions.


A peptide hormone that regulates carbohydrate and fat metabolism in the body.

Intermittent Fasting

Abstaining from caloric consumption for a short period.


The hormone that plays a crucial role in appetite, hunger, metabolism, and behavior.

Luteinizing hormone (LH)

Acts synergistically with FSH; communicates with the Leydig cells in the testes to signal the production of testosterone.


A chemical that transmits a signal frMalene neuron to another across a synapse.


Brain region responsible for releasing hormones into the endocrine system. The master endocrine gland.


Peptide hormone with essential roles in reproductive and immune functioning.

Sex hormone-binding globulin (SHBG)

The protein produced in the liver that binds to testosterone.

Soy Boy

Slang used to describe males who completely and utterly lack all necessary masculine qualities. (Urban Dictionary)


male sex steroid hormone.