Category Archives for Testosterone

Male Sexuality, Athletics, and Vitamin D

Why many people are deficient in vitamin D Vitamin D has been in the news a lot over the past five years or so; it’s importance to human health was already recognized, but the realization has hit

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Testosterone for muscle gain: it works

Steroids used for athletics have two functions: androgenic and anabolic. Androgenic signifies that it increases male sexual characteristics, and anabolic that it builds muscle. Steroids are essentially

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Testosterone therapy associated with vastly lower rate of heart attack and stroke

Testosterone Therapy Is Not Associated with Increased Cardiovascular Risk in Study Registry. I can’t copy and paste, so you’ll have to go read it there, but T therapy was associated with an

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Testosterone and mortality

A recent study that got a lot of traction in the press, Increased Risk of Non-Fatal Myocardial Infarction Following Testosterone Therapy Prescription in Men, found that men newly prescribed testosterone

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Magnesium increases T levels

Effects of Magnesium Supplementation on Testosterone Levels of Athletes and Sedentary Subjects at Rest and after Exhaustion This study was performed to assess how 4 weeks of magnesium supplementation and

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Does soy consumption affect male reproductive parameters?

There’s some question as to whether soy consumption affects male reproductive parameters such as sperm count and testosterone levels, some studies answering in the positive, some not. But there are

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Testosterone, fatigue, energy

One of the symptoms of low testosterone (T), also known as hypogonadism, is fatigue or low energy levels. A couple of papers give some insight into how this works, as well as the extent to which replacing

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Majority of young European men may be subfertile

Adverse trends in male reproductive health: we may have reached a crucial ‘tipping point’ Healthy men produce an enormous number of sperms, far more than necessary for conception. However, several

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Association of phthalates with obesity and insulin resistance

Concentrations of urinary phthalate metabolites are associated with increased waist circumference and insulin resistance in adult U.S. males. BACKGROUND: Phthalates impair rodent testicular function and

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Secular decline in testosterone levels

A Population-Level Decline in Serum Testosterone Levels in American Men Context: Age-specific estimates of mean testosterone (T) concentrations appear to vary by year of observation and by birth cohort,

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Probiotics sustain T levels

Probiotic Microbes Sustain Youthful Serum Testosterone Levels and Testicular Size in Aging Mice The decline of circulating testosterone levels in aging men is associated with adverse health effects. During

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Bioavailable Testosterone and Depressed Mood in Older Men

Bioavailable Testosterone and Depressed Mood in Older Men: The Rancho Bernardo Study A cross-sectional population-based study examined the association between endogenous sex hormones and depressed mood

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Testosterone, body composition and aging

Testosterone, body composition and aging. In addition to growth hormone (GH), sex hormones are important determinants of body composition. Aging is accompanied by a decrease in free testosterone levels

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Increasing testosterone by inhibiting aromatase

Kindke has an interesting post on an easy way to increase testosterone, through inhibiting the enzyme aromatase. This enzyme is responsible for converting testosterone (T) into estradiol. In the study

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Resveratrol doubles sperm count and testosterone in rats

trans-Resveratrol, a Natural Antioxidant from Grapes, Increases Sperm Output in Healthy Rats trans-Resveratrol was reported to have health benefits including anticarcinogenic effects and protection against

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Loss of Virility Associated with Soy and Veganism

In my book on chronic fatigue, a key point is the deleterious effects of inadequate protein in the diet. This is the main reason veganism is a bad health strategy. Some people have to learn this the hard

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