Category Archives: Testosterone Information

Reading Time: 2 minutesPUBLIC RELEASE DATE: 23-Dec-2013 Contact: Press Office niaidnews@niaid.nih.gov 301-402-1663 NIH/National Institute of Allergy and Infectious Diseases WHAT: A new study has identified a link between certain genes affected by testosterone and antibody responses to an influenza vaccine. The findings, published in Proceedings of the National Academy of Sciences, suggest that testosterone levels may partially explain why men often have weaker responses to vaccines than women. The study, led by researchers at Stanford University, was supported in part by the National Institute of Allergy and Infectious Diseases (NIAID), a component of the National Institutes of Health. Previous research has shown that … Read more »

Reading Time: 2 minutesWhen most of us hear the word testosterone we think of puberty and men in their twenties sowing their oats. We also tend to think of bulky body builders pumped up and maxed out. However testosterone plays many more roles in the health of both men and women than many of us realize. And low levels of testosterone in both sexes may cause serious negative health consequences. Whats more is it seems that testosterone levels in both men and women are getting lower at earlier ages. In fact, its estimated that twenty-five percent of men over the age of forty-five … Read more »

Reading Time: 2 minutesIn the early 1900s, Kansas was home to one of the most financially successful doctors in American history John Brinkley who practiced in Milford. He became famous or infamous to some for procedures which involved the transfer of tissue from one species to another; specifically, transplanting goat testicles into humans as a treatment of sexual dysfunction. Brinkley was scrutinized and eventually exposed as a charlatan and stripped of his license to practice medicine; however, his work was partially responsible for inspiring serious investigators to discover testosterone. In the mid-1930s, researchers Adolf Butenandt and Leopold Ruzicka were awarded the Nobel Prize … Read more »

Reading Time: < 1 minuteHOUSTON, June 24 (UPI) -- A drop in testosterone levels in men as they age is more likely to result from smoking, obesity and depression -- not aging, researchers in Australia say. Dr. Gary Wittert, professor of medicine at the University of Adelaide in Adelaide in Australia, and colleagues analyzed testosterone levels in more than 1,500 men who had measurements taken at two clinic visits five years apart. Men who had abnormal values, were taking medications or had medical conditions known to affect hormones, were excluded. The men included in the analysis involved 1,382 men -- ages 35 to 80 … Read more »

Reading Time: < 1 minuteA study of the lives of eunuchs from Korea's Joseon dynasty suggests that testosterone may be to blame for non-castrated men's shorter lifespans. Picture: Anja Johnson, flickr.com Source: Supplied SCIENTISTS have new evidence about why women live longer than men, from a study of historical data showing castrated Koreans far outlived their non-eunuch contemporaries. The study, published in the scientific journal Current Biology used detailed genealogical records of the Imperial nobility during Korea's Joseon dynasty, which spanned more than 500 years from the late 1300s to the early 1900s. According to the data, most men, including kings and royal family … Read more »

Reading Time: 1 minuteBy Rick Nauert PhD Senior News Editor Reviewed by John M. Grohol, Psy.D. on October 1, 2013 New research suggests testosterone can promote generosity, but only when there is no threat of competition. The study is published in Psychological Science, a journal of the Association for Psychological Science. Study findings show that testosterone is implicated in behaviors that help to foster and maintain social relationships, indicating that its effects are more nuanced than previously thought. Testosterone may mediate competitive and potentially antisocial behavior when social challenges or threats need to be confronted and handled, said lead researcher Maarten Boksem, Ph.D., … Read more »

Reading Time: 2 minutesMONDAY, June 3 (HealthDay News) -- Those late-night ads telling aging men that "low T" may be the reason they've lost the spring in their step appear to be reaching their audience. Use of testosterone therapy has increased dramatically over the past decade, according to a new study. But experts worry that too many men may be taking the supplements without understanding the potential risks. Researchers at the University of Texas Medical Branch at Galveston pointed out that the development of new drugs, particularly topical gels, also likely played a role in this trend. The study, published in the current … Read more »

Reading Time: < 1 minuteWashington, June 18 (ANI): Postmenopausal women's verbal learning and memory improved after they were treated with testosterone gel, a new study has found. Principal investigator Susan Davis, MBBS (MD), PhD, of Monash University, Melbourne, Australia, said that this was the first large, placebo-controlled study of the effects of testosterone on mental skills in postmenopausal women who are not on estrogen therapy. In the investigator-initiated study, the Australian researchers randomly assigned 92 healthy postmenopausal women, ages 55 to 65, who were not receiving estrogen therapy, to receive one of two treatments for 26 weeks. The treatments were a testosterone gel (LibiGel, … Read more »

Reading Time: 3 minutesWhile there are numerous hormones we may aptly label important in-terms of proper function and health, for men the hormone testosterone is of great importance. Both men and women require testosterone for a well-functioning body but men do so in far higher amounts then their female counterparts. While a very important hormone and largely misunderstood, testosterone is easily one of the most exciting hormones we can discuss, especially as it pertains to performance enhancing; in-fact, we can confidently say it is the most important hormone in the performance enhancing game. Without adequate levels of testosterone our goals will largely not … Read more »

Reading Time: 2 minutesPosted by admin in Lifestyle on November 9th, 2012 | 4 responses By Mandy Kendall Weve all heard of menopause and the affects it can have on women. Well, low testosterone levels (or Low T) can be responsible for the male version (man-o-pause?) and it can affect men in many of the same ways. Testosterone, known as the male hormone, is responsible for the typically male characteristics that appear during puberty such as facial hair growth, a deeper voice and muscle growth. Women produce testosterone too, but in much lower quantities than men. Mandy Kendall During adulthood, testosterone helps maintain … Read more »

Reading Time: 3 minutesAurich Lawson / Thinkstock From some perspectives, we humans aren't really so much individuals as we are walking ecosystemsour bodies carry more bacterial cellswith their own genomes and agendasthan the total count of human cells we're composed of. Bacteria cover our skin, get to our food before we have the chance to absorb it, and in many cases stay helpfully out of the way of the immune system. Given all that, it shouldn't be a surprise that we're finding that bacteria can have significant effects on the human body in ways that go well beyond causing an infection. Two articles … Read more »

Reading Time: 3 minutesDec. 30, 2013 For the male canary, the ability to sing a pitch-perfect song is critical to wooing female canaries. As the seasons change, so does song quality and frequency. The hormone testosterone plays a role in this changing song behavior. Researchers at The Johns Hopkins University have found that introducing testosterone in select areas of a male canary's brain can affect its ability to successfully attract and mate with a female through birdsong. They also found that enhancing song activity based on testosterone in one brain area can change the size of a separate brain area that regulates song … Read more »

Reading Time: < 1 minuteHome Mail News Sports Finance Weather Games Groups Answers Flickr More omg! Shine Movies Music TV Health Shopping Travel Autos Homes Mobile Yahoo! News Search News Search Web Sign In Mail Help Account Info Help Suggestions Yahoo! Home Video Photos GMA Year in Review Odd Comics Travel Opinion Trending Now Who Knew? Weather The Upbeat U.S. U.S. Video GMA Education Religion Crimes and Trials Local Contributor Network Year In Review World World Video Middle East Europe Latin America Africa Asia Canada Australia/Antarctica Business Video Exclusives Today's Markets Stocks Personal Finance Marketplace Entertainment Video Clinton Concert Celebrity TV Movies Music Fashion … Read more »

Reading Time: 2 minutesJuly 26, 2013 The results of a new study by neurological researchers at Rush University Medical Center show that a sudden decrease of testosterone, the male sex hormone, may cause Parkinson's like symptoms in male mice. The findings were recently published in the Journal of Biological Chemistry. One of the major roadblocks for discovering drugs against Parkinson's disease is the unavailability of a reliable animal model for this disease. "While scientists use different toxins and a number of complex genetic approaches to model Parkinson's disease in mice, we have found that the sudden drop in the levels of testosterone following … Read more »

Reading Time: < 1 minuteUgis Gruntmanis, MD Author Affiliations: Department of Medicine, Division of Endocrinology, University of Texas, Southwestern Medical Center, Dallas; and Dallas Veterans Affairs Medical Center, Dallas, Texas. Testosterone has a variety of well-known effects including bone accrual, building and maintaining muscle mass, and promoting erectile function and libido.1 Of the 5 mg of testosterone manufactured daily by the testes, about 6% to 8% is metabolized by 5-reductase to make 0.3 mg of dihydrotestosterone (DHT).2 Local conversion of testosterone to DHT by 5-reductase in the skin and prostate can create locally high concentrations of the potent androgen DHT. Dihydrotestosterone stimulates prostate growth … Read more »

Reading Time: 2 minutesDUBLIN--(BUSINESS WIRE)-- Research and Markets (http://www.researchandmarkets.com/research/qph2j2/global) has announced the addition of the "Global Testosterone Therapy Market: Trends and Opportunities (2013-2018)" report to their offering. The report titled Global Testosterone Therapy Market: Trends & Opportunities (2013-2018) provides an in-depth analysis of the global testosterone therapy market with detailed analysis of symptoms, diagnosis and treatment of testosterone deficiency. The report focuses on the US testosterone therapy market, assessing the key opportunities in the market and outlines the factors that are and will continue to drive the growth of the industry. Growth of the overall testosterone therapy industry has also been forecast for … Read more »

Reading Time: 2 minutesBy Matthew Perrone "Are you falling asleep after dinner?" "Do you have a decrease in libido?" "Have you noticed a recent deterioration in your ability to play sports?" "It could be Low-T." Welcome to the latest big marketing push by US drug companies. In this case, it's a web page for Abbott Laboratories' Androgel, a billion-dollar selling testosterone gel used by millions of American men struggling with the symptoms of growing older that are associated with low testosterone, such as poor sex drive, weight gain and fatigue. Androgel is one of a growing number of prescription gels, patches and injections … Read more »

Reading Time: < 1 minuteHome Mail News Sports Finance Weather Games Groups Answers Flickr More omg! Shine Movies Music TV Health Shopping Travel Autos Homes Mobile Yahoo! News Search News Search Web Sign In Mail Help Account Info Help Suggestions Yahoo! Home Video Photos GMA Year in Review Odd Comics Travel Opinion Trending Now Who Knew? Weather The Upbeat U.S. U.S. Video GMA Education Religion Crimes and Trials Local Contributor Network Year In Review World World Video Middle East Europe Latin America Africa Asia Canada Australia/Antarctica Business Video Exclusives Today's Markets Stocks Personal Finance Marketplace Entertainment Video Clinton Concert Celebrity TV Movies Music Fashion … Read more »

Reading Time: < 1 minuteHigh levels of testosterone might make men more trustworthy, a study has found. The male hormone, which boosts libido and builds muscle, is often associated with aggression and anti-social behaviour. But testosterone-fuelled hunks may also be less likely to lie and cheat than some of their brothers, the research suggests. Scientists boosted the testosterone levels of 46 men by smearing their skin with a gel containing the hormone. Another 45 men were treated with a "dummy" placebo gel lacking any testosterone. Both groups were then asked to take part in a behavioural study which involved playing a simple game of … Read more »

Reading Time: 2 minutes-- TV ads tout testosterone treatments for "low T," but surprising new research shows a different hormone may play a role in less sex drive and more fat as men age. Estrogen the female hormone is needed by men, too, and the study gives the first clear evidence that too little of it can cause certain "male menopause" symptoms. "A lot of things we think are due to testosterone deficiency are actually related to the estrogen deficiency that accompanies it," said Dr. Joel Finkelstein of Massachusetts General Hospital. He led the U.S.-government funded study, which appears in Thursday's New England … Read more »