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Testosterone levels in males and females ; Total testosterone Stage Age range Male Female Values SI units Values SI units ; Infant: Premature (26–28 weeks) 59–125 ng/dL: 2.047–4.337 nmol/L
What is the Normal Testosterone Level for a 70-Year-Old Man? 156–819 ng/dL. The researchers also broke the data down into normal levels of free testosterone and bioavailable testosterone.
Testosterone, total Refs Endocrine Society: United States: 100–200 pg/mL <50 ng/dL [1] World Professional Association for Transgender Health (WPATH) United States "[T]estosterone levels [...] below the upper limit of the normal female range and estradiol levels within a premenopausal female range but well below supraphysiologic levels."
Dips in testosterone can cause low libido, brain fog, depression, and muscle loss, but it's pivotal you know your normal range, a doctor says.
Testosterone levels play a major role in risk-taking during financial decisions. [93] [94] Higher testosterone levels in men reduce the risk of becoming or staying unemployed. [95] Research has also found that heightened levels of testosterone and cortisol are associated with an increased risk of impulsive and violent criminal behavior. [96]
As men get older, declining testosterone levels are as inevitable as death and taxes. Around the age of 30, men's T levels start to dwindle by about 1 percent a year.
Blood for the test must be taken in the morning hours, when levels are highest, as levels can drop by as much as 13% during the day and all normal reference ranges are based on morning levels. [9] [10] Normal total testosterone levels depend on the man's age but generally range from 240 to 950 ng/dL (nanograms per deciliter) or 8.3–32.9 nmol ...
Maintaining normal testosterone levels is essential to feeling good and staying healthy as you age. Testosterone is a critical hormone for men, and clinically low levels are associated with ...
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