What Impacts Testosterone Levels In Your Body?

By The Vault Team

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. Elevated levels of testosterone in the body produce fewer noticeable symptoms than low levels, and are often due to adrenal gland disorders that can be treated by a doctor.

Low levels of testosterone are caused by a number of factors, which are categorized as either primary or secondary. Primary causes stem from issues in the testes, while secondary causes arise due to problems with the hypothalamus or pituitary gland. Health factors that may be indicators for potential testosterone deficiency include the following:

  • Unexplained anemia

  • Bone density loss

  • Low trauma bone fractures

  • Type 2 diabetes

  • Exposure to chemotherapy (at any point in your life)

  • Exposure to testicular radiation (at any point in your life)


  • Chronic narcotic use

  • Chronic corticosteroid use

  • Pituitary disorders

  • Male infertility

  • Erectile dysfunction

  • Smaller than normal testicles (Testicular atrophy)

  • Veins around testicles (Varicocele)

  • Surgery to remove one or both testicles

  • Sleep Apnea

  • Hypertension

  • Obesity

Though these conditions are known indicators of potential low testosterone, it is essential to get a blood test before starting a treatment plan to verify the condition. The AUA’s 2018 guidelines on testosterone deficiency found that up to ⅓ of men placed on testosterone therapy don’t actually meet the clinical criteria for a diagnosis of testosterone deficiency. In fact, 25% of men who receive testosterone therapy do not have their testosterone tested prior to treatment initiation, and of the men who are treated with testosterone, nearly 50% do not have their level monitored after starting treatment. At Vault, we are committed to raising the standard for men’s health and providing access to the world’s best patient experience. That’s why we take morning blood tests, follow strict prescribing protocols designed by the best minds in medicine, and conduct extensive vetting of all of our partner healthcare providers.

Vault is dedicated to combating the poor practices of other testosterone treatment providers. We offer access to customized plans focused on understanding and clearly communicating every aspect of your condition and treatment through discreet testing, counseling, and therapy options.

Health Tips in Your Inbox

We make it easy to stay informed about the latest trends in men’s health to help you perform at the top of your game.

By signing up, you consent to the privacy policy