“This study establishes testosterone levels at which various physiological functions start to become impaired, which may help provide a rationale for determining which men should be treated with testosterone supplements,” Finkelstein says. “But the biggest surprise was that some of the symptoms routinely attributed to testosterone deficiency are actually partially or almost exclusively caused by the decline in estrogens that is an inseparable result of lower testosterone levels.”
Robert Clark aka "The Troglodyte" is a 39 year old father of 3, Author, Fitness Trainer, Nutritional Researcher, Obstacle Course Racer, Avid Trail Runner and CrossFit Warrior. He is dedicated to helping others achieve their fitness goals. His extensive work in the field of natural testosterone elevation, inspired the creation of Alpha Wolf Nutrition where he serves as the Lead Product Researcher.
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With the decline of ovarian function in menopause, not only do estrogen levels decline, but so does testosterone availability, since the ovaries contribute, either by direct secretion or through precursor production, about 50 percent of circulating testosterone. The other 50 percent is supplied by the adrenal glands. Many post-menopausal or oophorectomized women are symptomatic as a consequence of reduced testosterone, the leading symptom being loss of libido (Sherwin and Gelfand 1987; Simon et al 2005). There is an increasing trend toward testosterone supplementation in these women. Such supplementation may also lead, not only to increased libido, but to increased bone mineral density and an improvement in general overall sense of well-being including energy, strength, motivation and mood (Davis et al 1995; Davis et al 2000).
Consider supplementing with D-aspartic acid (DAA). DAA is an amino acid found in glandular tissues and it's thought to increase the activity of testosterone production and impact other hormones in the body. A 2009 study found that men who supplemented with 3,120 mg of DAA daily for 12 days experienced an increase in testosterone by an average of 42%. The results showed that DAA may have a key role in the regulation of the release and synthesis of testosterone in men, although it's likely to have similar effects on teenage males also. Another form of aspartic acid is made in the body and found in a variety of foods, but DAA is not as commonly found in food sources.
Testosterone levels generally peak during adolescence and early adulthood. As you get older, your testosterone level gradually declines — typically about 1 percent a year after age 30 or 40. It is important to determine in older men if a low testosterone level is simply due to the decline of normal aging or if it is due to a disease (hypogonadism).