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Stories about: testosterone |
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By darkening the breast feathers of male New Jersey barn swallows with a common marker, researchers from the Arizona State University showed that birds with naturally darker feathers attract more females than birds with lighter feather coloring. The experiment further proved that dark feathers can also boost the test... |
4 June 2008
06:34 GMT |
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Do you think that only testosterone induces the drive for power and aggressive behavior? Wrong! A new research published in the Hormones and Behavior journal shows that estrogen boosts power competition in women just like the male testosterone does, pointing that women have similar levels of competitiveness like men.... |
6 May 2008
14:06 GMT |
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Women's menstrual cycles may be painful, but their muscles are not. Polycystic ovary syndrome (POS) seems to make women better athletes, a Swedish research has revealed. POS leads to either no periods at all or irregular periods, but these symptoms are normal in sportive women and are normally associated in them... |
21 April 2008
14:06 GMT |
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Female body contains the male sex hormone, the testosterone (like the man's body, too, contains estrogen, the female sex hormone). Testosterone is naturally produced in women by the adrenal glands and has the role of boosting sex drive. Based on this principle, researchers have imagined a testosterone spray for ... |
15 April 2008
14:06 GMT |
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For you, testosterone may be a notion connected to high sex drive and muscles. But the male sex hormone influences male's behavior beyond physics and sex life. Including the economic behavior. A high testosterone blood level may translate into above-average profits for that day, as found by a new research publis... |
15 April 2008
14:06 GMT |
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In a world where women take more control of their lives, men get more involved in the contraception process. That's why the male pill may not be such a weird issue soon. Hormonal contraception could be a safer, more effective and reversible method of male birth control compared to other methods (like vasectomy, ... |
31 March 2008
15:06 GMT |
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We all start as egg cells. And after being fertilized, based on the information of the sex chromosomes, the new developing organism must turn into a male or a female. A new research published in "Journal of Clinical Investigation" shows that testosterone, the male hormone, is responsible for turning an embryo into a ... |
18 March 2008
14:06 GMT |
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There are men who do not feel men enough. Others love men. And some others feel like a woman. And what about women feeling like a man trapped in a woman's body? Being transsexual is a stressful condition, and sex change operations can bring the desired results or not. A new study published in the "Journal of Cli... |
22 February 2008
14:06 GMT |
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We associate testosterone with big muscles. Of course, they increase the muscle mass, but do not forget they are also responsible for the bigger bones of the males. And as men experience andropause, this affects not only muscles and sex drive, but bones as well. A new research published in the Archives of Internal Me... |
15 January 2008
05:27 GMT |
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Sex hormones in the womb are known to influence the mind, the fingers and the general development. A new research published in the journal "Arthritis & Rheumatism" has found that women with long ring fingers could have a higher rate of knee arthritis. Normally, women should have index and ring fingers of the same le... |
4 January 2008
04:50 GMT |
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Women like men that make them laugh, men like women that laugh at their jokes. Now an expert has found an explanation for this: male hormone testosterone. "Men make more gags than women and their jokes tend to be more aggressive," said Professor Sam Shuster, of Norfolk and Norwich University Hospital. He tested pers... |
21 December 2007
09:29 GMT |
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There are increasingly more cases in which the inner sexual feelings do not match the external genitalia. And it's not merely about sexual orientation. There are also numerous cases of ambiguous genitalia in humans, about 1: 4500 births. New discoveries are again underlining the fact that men have an XY pair of ... |
29 October 2007
15:06 GMT |
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The classic knowledge states that men have an XY pair of sex chromosomes, while women an XX one. Recent studies showed that many genes can bypass this arrangement and turn XX individuals into men. Now, a German-American team has discovered that the body's reactivity to testosterone is even more important than th... |
20 October 2007
03:58 GMT |
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Don't blame it on the age, it's marriage the one that makes a man less…male. Married/father males have been found to have significantly lower testosterone levels, as found by two new studies made at the University of Nevada, Las Vegas (UNLV), and led by anthropology professor Peter Gray. These researches ar... |
18 October 2007
13:06 GMT |
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Good husbands cannot be that masculine. A mixed team from Indiana University Bloomington, University of Virginia and University of Southern Mississippi investigating a natural population of Carolina dark-eyed juncos (Junco hyemalis carolinensis) found that natural fluctuations in testosterone levels are linked to a m... |
17 October 2007
03:26 GMT |
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Contraception has always been considered primarily a woman's responsibility. Now, men have the chance to 'help with this task', so that women can get rid of pills, IUDs and diaphragms...at least if they do not want to hear "Daddy" when they least expect it. Nowadays, men have only two options: vasecto... |
1 October 2007
15:41 GMT |
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It's a fact that men are so horny because of testosterone. Now, women could benefit from this, too. A new study shows that women with hypoactive sexual desire disorder (HSDD), characterized by persistent or recurrent deficiency and/or lack of sexual fantasies/thoughts/desire or absence of sexual receptivity) sho... |
15 August 2007
13:51 GMT |
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Sex and economics seem to be connected: animals tend to invest in their offspring according to their expected payoff. A team of behavioral ecologists at the National Museum of Natural History and the Laboratory of Evolutive Parasitology, Paris showed that, in the peafowl (Pavo cristatus), when females mated with att... |
23 July 2007
04:55 GMT |
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Good times for the male pooches. Their balls will be safe, while they will get friendlier, due to a new contraceptive implant that stops testosterone and sperm production for months. It is expected to obtain European approval within weeks, and it could be also sold in the US.The production of sex cells (egg and sperm... |
12 July 2007
13:06 GMT |
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Being fair play or not seems to be a question of sex hormones in men. A new research found that men with high testosterone levels are more likely to reject low offers, even if, this way, they're losing money. It appears that our deepest ancestral behaviors can make us choose irrational economic decisions.In the ... |
5 July 2007
14:21 GMT |
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A man with a micropenis has an unusually small penis, of about 2 cm at birth, and 4 cm in adulthood (2.5 times smaller than the average penis size). The micropenis is discovered shortly after birth when all parts of the genitals have had a chance to fully evolve, when scrotum and perineum is well-developed, to discar... |
22 June 2007
15:31 GMT |
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Would you still love your brother if you knew that because of him you've got no chance to have a healthy sex life and/or getting married? Because this is the case of girls born in mixed sex twin couples. Same sex female twin couples seem not to present this problem. A team led by Virpi Lummaa at University of Sh... |
19 June 2007
15:06 GMT |
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Are you an exclusive meat-eater? Bad news, 'cause your veggies could revigorate your sex life. A team including Kevin McGraw an assistant professor at Arizona State University and Daniel Ardia, of Franklin and Marshall College in Pennsylvania has showed that carotenoids - the pigments that give carrots the orang... |
15 June 2007
14:56 GMT |
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Women definitely know why they want a macho: because they live longer!A new research suggests that men with low levels of testosterone are 33 % more predisposed to a premature death than men with high levels of the male sex hormone. It seems that "testosterone replacement therapy", the male equivalent of hormone repl... |
6 June 2007
16:06 GMT |
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45 % of the young women have been found by a recent research to experience sexual dysfunction. Recently, Marrena Lindberg, 38, from Boston, comes with a sexual diet that could give women back their sexual health and pleasure. The Orgasmic Diet has four main hints, involved in enabling healthy sexual function in women... |
31 May 2007
15:41 GMT |
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Who says women are not aggressive?Scientists were puzzled when they noticed that female hormone estrogen induces calm and relaxation during the long summer days and aggressiveness during short winter daylight in the male Oldfield Mouse (Peromyscus polionotus), a native to southeastern US. This is one of the first re... |
22 May 2007
07:21 GMT |
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Testosterone is not good just for growing big muscles and turn men and women horny. A pilot research at UCLA indicates that testosterone fights multiple sclerosis (MS) in men after another large-scale clinical trial just underway confirmed that the female hormone estriol has the same effects on women. The team led by... |
16 May 2007
09:40 GMT |
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Female sex drive can drop severely following chemotherapy in cases of cancer. Some researches have revealed a link between testosterone therapy (androgen therapy) and higher sex drive in women with the right estrogen level. A new clinical trial showed that higher testosterone levels for female cancer survivors throu... |
2 May 2007
02:58 GMT |
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Bladder cancer turns into a nightmare the life of its victims, triggering excruciating piss problems. The disease affects about three times as many men as women: 50,000 men are estimated to develop it this year compared to 17,000 women in the US. Now a team led by Dr Chawnshang Chang, of the University of Rochester ... |
23 April 2007
06:40 GMT |
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What's inside a woman's head is very different from what's inside a man's head. Researchers know that the way neurons fire inside the brain differs related to sex, and this determines differences in how a woman's and a man's brains function. Now a research team has found that the way a b... |
16 April 2007
03:21 GMT |
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A face like Steven Segal's may upset or raise concern, but there are some individuals with high levels of testosterone who actually enjoy angry looks and even seek methods to provoke them, as suggests a new research. "It's kind of striking that an angry facial expression is consciously valued as a very nega... |
2 April 2007
10:05 GMT |
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Viagra, the anti-impotence drug that - for ten years now - has been helping men who have lost their sex drive, will become this week available for women on the NHS (National Health Service). A pharmaceutical patch named Intrinsa is designed to boost women's libido. The female Viagra is now all set to boom the s... |
26 March 2007
10:27 GMT |
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Testosterone is a very pushy hormone that induces that horny state in men. A new Canadian research points out that in fact, risen levels of testosterone act in men and women, straight or gay, in the same manner, making them feel really hot...Men are almost always disposed to sex, but in women, testosterone must fuel ... |
9 March 2007
08:50 GMT |
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