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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