2020 guidelines from the American College of Physicians support the discussion of testosterone treatment in adult men with age-related low levels of testosterone who have sexual dysfunction. In males, these are usual late pubertal effects, and occur in women after prolonged periods of heightened levels of free testosterone in the blood. Insufficient levels of testosterone in men may lead to abnormalities including frailty, accumulation of adipose fat tissue within the body, anxiety and depression, sexual performance issues, and bone loss. The designation of "healthy range" for testosterone levels depends on age and laboratory assay. Pubertal effects begin to occur when androgen has been higher than normal adult female levels for months or years. These include adult-type body odor, increased oiliness of skin and hair, acne, pubarche (appearance of pubic hair), axillary hair (armpit hair), growth spurt, accelerated bone maturation, and facial hair. The male brain is masculinized by the aromatization of testosterone into estradiol, which crosses the blood–brain barrier and enters the male brain, whereas female fetuses have α-fetoprotein, which binds the estrogen so that female brains are not affected. As the metabolism of testosterone in males is more pronounced, the daily production is about 20 times greater in men. It’s natural to be concerned about lower testosterone levels. I’ve been writing about testosterone on this site for over a decade because testosterone is an important part of a man’s overall health and wellness. At SynergenX, we understand how frustrating and challenging low testosterone symptoms can be, especially when you are actively working hard to grow your career. This combination of proper hormonal balance and healthy habits can help unlock maximum job opportunity potential. Whether from work or the pressures of daily life, stress can seriously affect your mental and physical health, and can limit your potential career growth. This elevation in cortisol can have detrimental effects on both the body and mind. These hormones need to be in equilibrium to support effective decision-making, improved cognitive skills, and better coping mechanisms during stressful situations. The amount of testosterone synthesized is regulated by the hypothalamic–pituitary–testicular axis (Figure 2). In addition, the amount of testosterone produced by existing Leydig cells is under the control of LH, which regulates the expression of 17β-hydroxysteroid dehydrogenase. The number of Leydig cells in turn is regulated by luteinizing hormone (LH) and follicle-stimulating hormone (FSH). Testosterone is also synthesized in far smaller total quantities in women by the adrenal glands, thecal cells of the ovaries, and, during pregnancy, by the placenta. Testosterone can either directly exert effects on target tissues or be metabolized by 5α-reductase into dihydrotestosterone (DHT) or aromatized to estradiol (E2). In addition to its role as a natural hormone, testosterone is used as a medication to treat hypogonadism and breast cancer. In humans and most other vertebrates, testosterone is secreted primarily by the testicles of males and, to a lesser extent, the ovaries of females. Speak with a healthcare professional about whether you should take testosterone. The best way to check for low testosterone is to visit a doctor for a physical exam and a blood test. have been undertaken on the relationship between more general aggressive behavior, and feelings, and testosterone.} They could measure your testosterone levels and help develop a treatment plan, if necessary. Females typically have much lower testosterone levels than males. Low testosterone levels for adult premenopausal females are 10 to 55 ng/dL, and for postmenopausal females, 7 to 40 ng/dL. They act as chemical messengers that signal your sex organs to start processes needed to support your reproductive health. Your provider may order a test to check your LH levels if you have fertility issues, low sex drive or irregular menstruation. LH helps with menstruation and testosterone production.
