Do men with high testosterone levels become aggressive?
Classic known knowledge about Testosterone: "the hormone of masculinity and power!
The hormone called testosterone determines the libido (sex drive) in men. This is actually a tool of our genes. So the female genes are looking for men who can give birth to their child, who are strong, who can protect their female and their nest, and they like men who are high in testosterone that have these traits". Testosterone has long been seen as a metaphor for aggression, but is there really anything to the idea of testosterone-driven men? Leading scientists explain how subtle the hormone's effects actually are.
Related a documentary video >> Testosterone - new discoveries about the male hormone | DW Documentary
Men with too much testosterone levels have long been accused of violent and competitive behavior. Now this image of sex hormone is changing! Unlike in the animal world, the general expression" testosterone makes a person aggressive " cannot be verified in humans, and recent studies show that it can actually even promote selfless behavior. So it's quite different from the known old information ... One of the leading experts in this field is Jean-Claude Dreher from Lyon. He says laboratory experiments have shown that testosterone does not make men aggressive, but instead allows them to act in a strategic way. Those who are more testosterone-laden tend to be friendlier to others in order to strengthen their own social status (i.e. not aggressive or aggressive!).
Is there a relationship between testosterone and aggression?
Testosterone is produced in the male genitals, the female ovaries, and the adrenal glands of both sexes. It initiates the development of reproductive organs in men during the first weeks of pregnancy.
* After birth, testosterone plays a role in regulating various processes, from the distribution of fats to the production of red blood cells.
Long before the discovery of the hormone testosterone, people believed that the Erbes had a rejuvenating power. The Roman naturalist Plinius the Great pointed out that eating the hyena's reproductive organs (admittedly, with honey) could have stimulating effects on sexual power.
* Eating honeyed hyenas must be much more preferable than that of John Brinkley, the Kansas City crook who placed sliced goat Broads in men's Broads in the 1920s on the grounds that it had an effect on increasing masculinity and relieving some problems.
In addition to increasing sexual power in men, testosterone can also increase libido in women by activating receivers in a part of the brain responsible for sexual activity.
• Sexual hormones of testosterone in 500 million years ago-before the emergence of the first vertebrates-all of steroid hormones, “mother”, which evolved from the hormone estrogen.
However, testosterone is usually a masculine hormone. Normal testosterone levels in women are up to 5-7 percent in men.
* Testosterone levels decrease as you age. Fifty percent of men in their 80s have lower testosterone levels than the normal testosterone levels of an adult man.
* But the only thing that is not out of the question is the need for testosterone. In 2010, U.S. physicians prescribed testosterone to 1.3 million patients. In 2013, that number reached 2.3 million.
Aging is not the only cause of low testosterone levels. Obesity also leads to the reduction of this hormone. As the ratio of fat in the body increases, testosterone turns into an estrogen called estradiol, which further prevents testosterone production.
Low levels of testosterone due to obesity cause a much more severe vicious cycle, because testosterone ostensibly promotes muscle growth by novitiating the production of growth hormone-releasing hormones (GHRH) associated with lean body mass.
However, it is not known for certain whether the benefits of testosterone drugs outweigh their possible reservations. Some studies indicate that testosterone drugs increase the attractiveness of cardiovascular diseases in older men, while some studies show that these drugs decrease the overall mortality rate.
* Testosterone hormone was first processed artificially in 1935, after another male hormone, androsterone, was first decomposed by distilling about 15 thousand litres of donated urine.
* Dutch researchers derived the word testosterone in the same year. There are over 30 types of anabolic-androgenic steroids that are used to promote novelization, some of which have positive and some of which have negative effects. But these are all artificial compounds emulating the chemical structure of testosterone.
While there is a certain correlation between aggressive behavior and testosterone levels, the majority of studies lack evidence of such a cause-and-effect relationship. Moreover, some research results point to the opposite situation.
* One study pointed out that there is a much tighter link between high testosterone levels and aggressive behavior in boys aged 12-13, but this is not the case in boys aged 15-16. Studies of non-human beings have found a much stronger link between aggression and high testosterone levels.
* The effect and timing of testosterone production varies greatly among living species. In humans, testosterone production begins prior to birth in order to determine sex, while in rats, the production process begins only after birth.
* Evidence supports” natural " testosterone enhancers: while deer antler has no lasting effect on testosterone levels, royal jelly - it seems to do wonders in hamsters (rattle rats).
* Conflicting results have been obtained from the research does not stop those who try to increase testosterone level with royal jelly. Twenty-five percent of those who started drinking it in 2013 joined this caravan without having any blood tests to see if their testosterone levels were indeed low, the U.S. Food and Drug Administration says.