Importance of Testosterone
Did you know that testosterone is crucial for both men’s and women’s health? Read on to learn more!
Testosterone Replacement in Men
Sales of testosterone replacement drugs have surged more than 20-fold in response to studies linking low testosterone to a host of common maladies.5
Testosterone starts to decline in most men after 30, but accelerates after 50.6 Low testosterone levels have been associated with decline in libido, erectile dysfunction, lack of energy, less physical strength and endurance, loss of height, decreased enjoyment in life, low mood, grumpiness, falling asleep after dinner, and decreased work performance.7, 8 Some studies suggest low testosterone may also contribute to cognitive decline and increased risk of type 2 diabetes.9, 10, 11
Testosterone for Women
Although testosterone is thought of primarily as a male hormone, it is an important hormone for women, too. A review study of the clinical significance of testosterone has shown positive association with sexual function and healthy libido in women.12
Watch Out for Excess Estrogens / The Risk of Testosterone Injections
While men are lining up for testosterone injections, few doctors test estrogen levels.
Men with even slightly elevated estrogen levels double their risk of stroke and have increased risk of coronary artery disease,1 benign prostatic hypertrophy, and prostate cancer.2
It turns out it is incomplete to test only for testosterone levels and then fill the empty tank with testosterone injections. There is a complex balancing act that takes place between testosterone and estrogen.
In a study in the Journal of American Medicine (JAMA), 501 men with chronic heart failure were measured for levels of estradiol (a type of estrogen). Men with lowest estradiol levels were 317% more likely to die, while men with highest estradiol were 133% more likely to die (within three years).3
So while both high and low male estrogen levels present a problem, high estradiol levels is the more common concern.1
Men cannot make estrogens, and therefore must convert testosterone into estrogen. Low testosterone may result in low estrogen levels, but not always. High amounts of the enzyme aromatase, which converts testosterone to estrogen, can deplete testosterone levels while raising estrogen levels dangerously high.
Taking testosterone drugs can surge testosterone levels, encouraging excess testosterone to convert to estrogen. Aging men sometimes have too much aromatase activity, which also causes testosterone to convert to excess estradiol. Other men produce so little endogenous testosterone that there is not enough to convert into estrogen, which causes low levels of both free testosterone and estradiol. Estrogen acts much like insulin, which can raise blood sugar, cause weight gain, and lead to a host of other concerns.5
The risk of testosterone injections is that the more testosterone increases, the higher risk of converting into estrogen, which may present an even greater risk than low testosterone!
Lower Estrogen Exposure
Part of our problem is the abundance of environmental estrogens that disturb our natural balance. Estrogen is a growth hormone found in most non-grassfed animal products. Pesticides are estrogenic, our water supplies are contaminated with estrogens, and we receive naturally occurring phytoestrogens from plants.
Learn how to avoid environmental estrogens in my article on the estrogen-autism link:
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Naturally Boost Free Testosterone without Disturbing Estrogen Levels
Most testosterone is bound to a protein called sex hormone-binding globulin (SHBG). This bound form of testosterone is inactive, as it is already bound up and occupied. The two herbs in Testosterone Boost, shilajit and Malaysian ginseng, have been found to boost free testosterone.
Ideal free serum testosterone levels for most aging men are 20-25 pg/mL.5
Malaysian Ginseng (Eurycoma longifolia)
The LJ100® patented form of Eurycoma longifolia used in LifeSpa’s Testosterone Boost is a root extract whose safety and efficacy is backed by at least 12 human clinical studies.
A randomized, placebo-controlled, two-month study with 20 volunteers age 38-58 who consumed LJ100® showed improvement in sexual desire and performance. Also, testosterone and DHEA levels were high-normal when compared to placebo.14
Maylasian ginseng has been found to be a potential agent for reversing effects of estrogen by increasing free testosterone and spermatogenesis and sperm counts in rats after fourteen consecutive days of treatment.4
Shilajit (Asphaltum, Mineral Pitch)
Shilajit has a rich history of use in Indian Ayurvedic and siddha medicine as a health and wellness optimizer. It is known as a rasayana because of its rejuvenating qualities, which include heightening physical performance and relieving fatigue.15
More than 50 studies on shilajit suggest it has positive effects on testosterone levels and adaptogenic, antioxidant, and immune supportive benefits.16
The proprietary preparation of shilajit used in Testosterone Boost, called PrimaVie®, has been well-studied. In one study, the equivalent of two capsules of Testosterone Boost taken daily for 90 days was evaluated in 75 healthy male volunteers aged 45–55 for its testosterone secretion efficacy and stimulation effects.
This double-blind placebo-controlled study revealed that PrimaVie® shilajit, compared to placebo, significantly increased total testosterone, free testosterone, and dehydroepiandrosterone (DHEA). Levels of testosterone were well-maintained.13
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For Women + Men!
Like shilajit, benefits of LJ100® ginseng used in Testosterone Boost are not limited to particular genders or ages. Two studies, one in middle-aged and one in senior males and females, demonstrated the herb’s promotion of healthy fitness, vitality, and vigor in both genders concomitant with an increase in free testosterone and a decline in SHBG.17,18
Have you tried Testosterone Boost? What did you notice?