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The manual

A how-to guide for taking care of yourself, from Vault Health

What are the different types of testosterone therapy?

Throughout a man’s life, testosterone levels fluctuate for a variety of reasons. After the age of 30, testosterone levels drop by 1.5% a year, putting men at risk of testosterone deficiency, which can lead to insomnia, sleep apnea, change in body composition, drop in energy levels, mood changes, and difficulty with concentration or memory....

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How does testosterone affect body composition and physique?

The effects of testosterone can be seen throughout the body, impacting everything from sex drive and mood to muscle growth and fat storage. When the body does not produce an adequate amount of testosterone, many of these functions become impaired, resulting in symptoms ranging from low libido and energy to mood changes and difficulty concentrating....

What are the benefits of testosterone therapy?

Testosterone is an essential hormone for men, regulating everything from muscle and bone growth to sex drive and red blood cell production. According to the American Urological Association, men lose 1%-1.5% of their testosterone per year after age 30, and data suggest that an estimated 24 million men in the United States suffer from testosterone deficiency....

What impacts testosterone levels in your body?

The level of testosterone in the bloodstream varies widely, depending on overall health factors, and age. In men, testosterone production is linked to the development of secondary sexual characteristics that arise during puberty including increased muscle mass, hair growth, and deepening of the voice. Testosterone levels typically reach their peak around age 18 and begin to drop at a rate of about 1% per year after the age of 30....

How to determine if you're a candidate for testosterone treatment

Given the importance of testosterone in overall male health, a consultation with a healthcare provider is important if you’re exhibiting symptoms of testosterone deficiency. The only accurate way to determine one’s testosterone levels is through a blood test administered by a healthcare provider. Tests should be taken in the morning, when testosterone levels are highest....

How to measure testosterone effectively

Experiencing symptoms of testosterone deficiency may come as a surprise, but the reality is that these symptoms are not uncommon. The good news is that there is effective treatment for combating the impact low testosterone can have on your body and mind. It’s important to have your testosterone levels assessed carefully by a physician before supplementation, but if you suspect you may have low testosterone, here are three ways to help you evaluate whether you may be experiencing testosterone deficiency....

What are the symptoms of low testosterone?

Testosterone is an important part of everyday bodily function, controlling muscle and bone growth, fat storage, red blood cell production, libido, and more. Normal testosterone levels can range anywhere from 300 to 1,000 ng/dL, and can only be accurately measured through a blood test administered by a specialist or doctor....

What is testosterone, and how does it affect your health?

Testosterone is a naturally occurring hormone found in both male and female bodies. Belonging to a special group of male hormones called androgens, testosterone is more prevalent in males because of its large-scale production in the testicles, though a small amount is also produced in the adrenal glands, which are located above the kidney....