Category Archives: Testosterone Information



Parkinson's in men may be linked to testosterone decline


Posted by Dr. Michael White, Updated on December 15th, 2017

Reading Time: < 1 minuteEditor's Choice Academic Journal Main Category: Parkinson's Disease Also Included In: Neurology / Neuroscience;Men's Health Article Date: 30 Jul 2013 - 0:00 PDT Current ratings for: Parkinson's in men may be linked to testosterone decline Parkinson's disease in men may be linked to a sudden decline in testosterone, a study published in The Journal of Biological Chemistry suggests. Researchers at Rush University Medical Center analyzed a number of male mice who had been castrated, dramatically decreasing their testosterone levels, and they found that the mice showed increased symptoms of Parkinson's disease. Dr. Kalipada Pahan, professor of neurology at the university, … Read more »

Hypogonadism – Wikipedia, the free encyclopedia


Posted by Dr. Michael White, Updated on December 15th, 2017

Reading Time: 3 minutesHypogonadism is a medical term which describes a diminished functional activity of the gonads the testes and ovaries in males and females, respectively that may result in diminished sex hormone biosynthesis and impaired gamete production and/or regulation. In layman's terms, it is sometimes called "interrupted stage 1 puberty". Low androgen (e.g., testosterone) levels are referred to as hypoandrogenism and low estrogen (e.g., estradiol) as hypoestrogenism, and may occur as symptoms of hypogonadism in both sexes, but are generally only diagnosed in males and females respectively. Other hormones produced by the gonads which may be decreased by hypogonadism include progesterone, DHEA, … Read more »

Do you have low testosterone?


Posted by Dr. Michael White, Updated on December 15th, 2017

Reading Time: 2 minutesThe male hormone, testosterone, is essential for healthy ageing in men. DATUK Prof Dr Tan Hui Meng recalls the day that 58-year-old Mr L sat in his clinic and told him about his old man sickness. L used to be a very active and vibrant man, says Prof Tan. He would go mountain biking and scuba-diving regularly, and played golf every day. However, something changed when L hit 55. He began to feel tired and sleepy every afternoon. Instead of exercising for an hour-and-a-half every day, he cut it down to 45 minutes. He also felt that he was generally … Read more »

Adding Testosterone to Viagra May Not Help Erectile Dysfunction


Posted by Dr. Michael White, Updated on December 15th, 2017

Reading Time: 2 minutesFor men with low testosterone, taking testosterone along with Viagra may not help their erections more than if they only took Viagra, a new study shows. There were lots of reasons to think that it would work," Boston University researcher Matthew Spitzer, MD, says of the common practice of combining the two treatments. It was surprising to me that it didnt. The study, published in the Annals of Internal Medicine, was a good one and the largest of its kind, but will it change practice? In my opinion, no," says urologist Jason Hedges, MD, PhD, of Oregon Health and Science … Read more »

Testosterone increases honesty, study suggests


Posted by Dr. Michael White, Updated on December 15th, 2017

Reading Time: 2 minutesScienceDaily (Oct. 10, 2012) Testosterone is considered THE male hormone, standing for aggression and posturing. Researchers working with Dr. Armin Falk, an economist from the University of Bonn, have now demonstrated that this sex hormone surprisingly also fosters social behavior. In play situations, subjects who had received testosterone clearly lied less frequently than individuals who had only received a placebo. The results have just been published in the Public Library of Science's international online journal PLoS ONE. The hormone testosterone stands for typically male attributes -- it fosters the forming of the sexual characteristics, increases libido and muscle building. Women … Read more »

Prosecution: Error in 'testosterone' testimony


Posted by Dr. Michael White, Updated on December 14th, 2017

Reading Time: 2 minutesPRETORIA, South Africa (AP) The investigating officer in the Oscar Pistorius murder case made an error in his court testimony Wednesday when he identified a substance found in the athlete's bedroom as testosterone, the national prosecutor said. Medupe Simasiku, the spokesman for South Africa's National Prosecution Agency, told The Associated Press that it was too early to identify the substance as it was still undergoing laboratory tests. "It is not certain (what it is) until the forensics." Simasiku said, adding that it wasn't certain if it was "a legal or an illegal medication for now." Detective Warrant Officer Hilton Botha, … Read more »

Male testosterone levels increase when victorious in competition against rivals, but not friends


Posted by Dr. Michael White, Updated on December 14th, 2017

Reading Time: 2 minutesMay 14, 2013 Sporting events can bring a community together, such as when the Louisville Cardinals won the NCAA championship and University of Louisville campus was filled with camaraderie. They also can fuel bitter rivalries, such as the long-standing animosity between the St. Louis Cardinals and the Chicago Cubs. A new University of Missouri study has found that testosterone levels during group competition are modulated depending on the relationships among the competitors and may be related to the formation of alliances in warfare. "One interesting thing about humans is that we are the only animal that competes in teams," said … Read more »

Drop in testosterone tied to prostate cancer recurrence


Posted by Dr. Michael White, Updated on December 14th, 2017

Reading Time: 2 minutesScienceDaily (Oct. 28, 2012) Men whose testosterone drops following radiation therapy for prostate cancer are more likely to experience a change in PSA levels that signals their cancer has returned, according to new research from Fox Chase Cancer Center. The findings will be presented on October 29 at the American Society for Radiation Oncology's 54th Annual Meeting. Specifically, men whose testosterone fell following various forms of radiation therapy were more likely to experience an increase in prostate-specific antigen (PSA) -- often the first indication the cancer has recurred. "The men who had a decrease in testosterone also appear to be … Read more »

Low testosterone levels in males linked to rheumatoid arthritis


Posted by Dr. Michael White, Updated on December 13th, 2017

Reading Time: 2 minutesWashington, Apr 4 (ANI): Low testosterone levels may be an indication for the subsequent development of rheumatoid arthritis in men, a new study suggests. Sex hormones are thought to play a part in the development of rheumatoid arthritis, and both men and women with the condition tend to have lower levels of testosterone in their blood than healthy people. But it is not clear whether this is a contributory factor or a consequence of the disease. The researchers based their findings on participants of the Swedish Malmo Preventive Medicine Program (MPMP), which began in 1974 and tracked the health of … Read more »

Many men start testosterone therapy without clear medical need


Posted by Dr. Michael White, Updated on December 13th, 2017

Reading Time: 2 minutesPUBLIC RELEASE DATE: 9-Jan-2014 Contact: Jenni Glenn Gingery jgingery@endocrine.org 301-941-0240 The Endocrine Society Chevy Chase, MDAlthough testosterone use has sharply increased among older men in the past decade, many patients appear to have normal testosterone levels and do not meet the clinical guidelines for treatment, according to new research accepted for publication in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism. Testosterone is a key male sex hormone involved in maintaining sex drive, sperm production and bone health. Since testosterone levels tend to naturally decline as men age, lower levels of the hormone do not necessarily mean that an … Read more »

Prenatal testosterone levels can affect brain function and behaviour later in life


Posted by Dr. Michael White, Updated on December 13th, 2017

Reading Time: 2 minutesWashington, November 6 (ANI): Testosterone levels early in fetal development influence later sensitivity of brain regions related to reward processing and affect an individual's susceptibility to engage in behaviour, that in extremes, are related to several neuropsychiatric conditions that asymmetrically affect one sex more than the other, a new study has found. Dr. Michael Lombardo, Prof. Simon Baron-Cohen and colleagues at the University of Cambridge led the study. Although present at low levels in females, testosterone is one of the primary sex hormones that exerts substantial influence over the emergence of differences between males and females. In adults and adolescents, … Read more »

Debate grows on testosterone therapy


Posted by Dr. Michael White, Updated on December 12th, 2017

Reading Time: 2 minutesThere is a growing debate in mixed martial arts about the usage of testosterone replacement therapy. The debate over the controversial therapy is in the spotlight this week because former Pride and Strikeforce champion Dan Henderson of Temecula is fighting former UFC light-heavyweight champion Lyoto Machida in the co-main event of UFC 157 on Saturday night at Honda Center on pay-per-view. Dan Henderson celebrates a victory in 2011. He will fight former UFC light-heavyweight champion Lyoto Machida in the co-main event of UFC 157 on Saturday night at Honda Center. KAMIL KRZACZYNSKI, THE ASSOCIATED PRESS ADVERTISEMENT Henderson, 42, a two-time … Read more »

iSatori Launches New Testosterone Support Formula Fenu Test(TM) to GNC Retail Stores Nationwide


Posted by Dr. Michael White, Updated on December 12th, 2017

Reading Time: 2 minutesGOLDEN, CO--(Marketwired - Oct 10, 2013) - iSatori, Inc. (OTCQB: IFIT) ("the Company") today announced the launch of its new natural testosterone support formula called Fenu Test with America's largest distributor of specialty dietary supplements, Europa Sports (www.europasports.com), and GNC retailers nationwide. While the popular Biogenetic Laboratories division of iSatori is almost exclusively focused on weight-loss support supplements (including hCG Activator, GCB Lean800, and Garcinia Trim, the #1 selling diet "new arrival" on GNC.com), iSatori has decided to strategically expand this line to help a wider range of customers seeking optimal health. "Decreased energy and libido, increased body fat, as … Read more »

Meal timing may help improve fertility in women with polycystic ovaries


Posted by Dr. Michael White, Updated on December 12th, 2017

Reading Time: 2 minutesA researcher has found that meal timing can help women suffering from Polycystic Ovarian Syndrome (PCOS) impairs fertility by impacting menstruation, ovulation, hormones - manage their glucose and insulin levels to improve overall fertility. Women with the disorder are typically insulin resistant their bodies produce an overabundance of insulin to deliver glucose from the blood into the muscles. The excess makes its way to the ovaries, where it stimulates the production of testosterone, thereby impairing fertility. The goal of Daniela Jakubowicz of Tel Aviv Universitys Sackler Faculty of Medicine and the Diabetes Unit at Wolfson Medical Center, maintenance meal plan, … Read more »

Dude, My Testosterone Pushes 1290. How's Yours?


Posted by Dr. Michael White, Updated on December 12th, 2017

Reading Time: 4 minutesOver the years, Ive grown accustomed to abiding unusual pre-conditions to secure interviews. Blindfolds and undisclosed locations, for instance, were required to visit Salman Rushdie (then under a fatwa), and to meet the Billboard Liberation Front (a group that scaled buildings to improve outdoor advertising in the foggy dark of San Francisco nights). TV survivalist Bear Grylls suddenly whipped off his pants and insisted we go running in a frigid Central Park. Hed tell me whatever I wanted to knowif I had the breath to ask. Actor Viggo Mortenson had me personally sign a contract that the magazine I was … Read more »

Treating low testosterone


Posted by Dr. Michael White, Updated on December 11th, 2017

Reading Time: 2 minutesTreating testosterone deficiency is not about improving mens lives at a superficial level, as some people mistakenly believe, but plays a crucial role in the management of chronic diseases. IN the last article for this column, we looked at what happens in men who have abnormally low testosterone levels. Many men start experiencing a dip in their testosterone levels when they hit their 50s and 60s. This syndrome manifests as lethargy, moodiness and irritability, weight gain, low libido, abdominal obesity and erectile dysfunction. Testosterone deficiency may be linked with older age, but it would be wrong to accept it as … Read more »

Men taking long-acting chronic pain meds five times more likely to have low testosterone levels


Posted by Dr. Michael White, Updated on December 11th, 2017

Reading Time: 2 minutesJan. 31, 2013 Low testosterone levels occur five times more often among men who take long-acting instead of short-acting opioids for chronic pain, according to a new Kaiser Permanente study published in The Clinical Journal of Pain. While it has been known that opioids cause low testosterone in men, this study is the first to show a significant difference in risk between short-acting (immediate release) and long-acting opioids. The 81 men in the retrospective study were between 26 and 79 years old (median age 51) and were seen in the chronic-pain clinic at Kaiser Permanente's Santa Rosa Medical Center (Calif.) … Read more »

Testosterone therapy takes off pounds


Posted by Dr. Michael White, Updated on December 11th, 2017

Reading Time: 2 minutesFive-year study finds consistent weight loss in men getting hormone Web edition : Monday, June 25th, 2012 HOUSTON Men with low testosterone who are given replacement doses of the hormone shed weight steadily for years, researchers in Germany reported June 23 at a meeting of the Endocrine Society. Study participants, nearly all of whom were overweight or obese at the start of the study, lost 36 pounds on average. This was an unintended effect, said study coauthor Farid Saad, a research endocrinologist at Bayer Pharma in Berlin. The big surprise was that when we analyzed the data [we found] that … Read more »

Testosterone reason women outlive men


Posted by Dr. Michael White, Updated on December 11th, 2017

Reading Time: < 1 minuteScientists say they have new evidence about why women live longer than men, from a study of historical data showing castrated Koreans far outlive 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 members, died in their late-40s or early-50s. But noble-class eunuchs - men who were castrated either by accident or because of social benefits - lived, on average, … Read more »

Testosterone: MedlinePlus Medical Encyclopedia


Posted by Dr. Michael White, Updated on December 11th, 2017

Reading Time: < 1 minuteA testosterone test measures the amount of the male hormone, testosterone, in the blood. Both men and women produce this hormone. The test described in this article measures the total amount of testosterone in the blood. Another test measures what is called "free" testosterone. A blood sample is needed. For information on how this is done, see: Venipuncture The recommended time of day to have a blood sample taken for this test is between 7 a.m. and 10 a.m. It may need to be repeated a second time. The health care provider may advise you to stop taking drugs that … Read more »