The Science Behind Testosterone Replacement Therapy:
An Overview

What is Testosterone?

Testosterone is the primary sex hormone in males. It is an androgen, which is
any natural or synthetic substance that stimulates or controls the development
and maintenance of male characteristics in vertebrates. Testosterone is
important for healthy bone and muscle mass, body hair growth, sex drive and
fertility.



Symptoms of Low Testosterone

Some common symptoms of low Testosterone
Replacement Therapy or hypogonadism include:

- Decreased sex drive

- Erectile dysfunction

- Fatigue

- Mood changes like irritability or depression

- Loss of body hair

- Increased breast tissue

- Loss of muscle mass and strength



Causes of Low Testosterone

There are several potential causes of low testosterone, including:

- Normal aging process - Testosterone levels normally begin to decline after
age 30 at a rate of about 1% per year.

- Medical conditions - Things like obesity, type 2 diabetes, infections or
chronic illness, hypogonadism (testicular issues), pituitary or hypothalamic
problems.

- Environmental toxins - Certain chemicals have been shown to disrupt hormones.

- Medications - Chronic opioid use, glucocorticoids, bisphosphonates.

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Replacement Therapy