Effects Of Testosterone On Men

Robert Sapolsky’s collection of essays “The Trouble with Testosterone” is a thorough examination of the evolutionary roots of human behavior, by discussing the biology behind it. The book contains eighteen essays that explore this issue. The Stanford neuroscientist is a great writer: he concisely explains his views in each essay and makes it funny and easy for a layman to understand and absorb. He unpacks complex scientific ideas and explains them. The essay that I found most interesting was the titular essay, which was an examination of flawed logical reasoning that biologists make when they think there is a causal relationship between testosterone and aggression. Sapolsky, in that essay, explains why that is not true. These essays did not

Scientists have suggested that biological characteristics of males predispose them towards certain behavior and statistical evidence exists to support these ideas. Blum examined crime reports in the United States and Europe and noted that men commit ten to fifteen times as many robberies as women (459). She also noted that for those robberies men were twice as likely to use a gun while committing the crime. Daly and Wilson present homicide rates for men and women in their article “Darwinism and the Roots of Machismo.” They found that in the United States, Canada, and England over a time period spanning 15 to 20 years, men committed 10 to 30 times as many homicides as women. Based on these statistics it is clear

Similarly the controls; untreated males and females) exhibited male and female characteristics respectively as this was somewhat intrinsic based on their genome, that is, what is contained in their genetic makeup and not dependent on the environment they were raised in. this is synonymous with the studies done with 16 males in that the majority of genetically male children behaved as male despite being raised as females. This behavior was already encoded in their DNA. However, with the 43 girls, the effect of testosterone was nil on the

Testosterone is a hormone in both men and women, but in greater extent in the men, testosterone is a chemical compound (C19H28O2) and is responsible for the characteristic of men such as, sexual characteristics/sexual organs, deepening of the voice, and facial and body hair. (Neil Schlager, Jayne Weisblatt, and David E. Newton 2006) Testosterone/Steroids has bodybuilding and masculinizing effect as well as treating a variety of medical conditions, like asthma, the steroid is used in a puffer, they can be used for anabolic or androgenic purposes and made for synthetic purposes making them illegal. (BROWER, K. J. 2001) Many athletes will use these to gain an advantage on competitors, with lean muscle and higher endurance, with many uses, there

Testosterone is a hormone that is more concentrated in men than in women as it is a male sex hormone, it is thought to influence aggression from a young age onwards, due to its actions on the brain areas involved in controlling aggression. One research study that was done on testosterone involved measuring the testosterone found in the saliva of violent and non-violent criminals. This study was concluded by Dabbs et al

Interaction between hormones and behavior has shown to be linked to higher aggression and hostility. The aggression found relates to sexual maturation and genetic characteristics. Androgens and testosterone are major influences of aggression. Hormones affect behavior and emotions. These aggressive effects can stem from contemporaneous organizational influences.

The focus of this particular research paper was to prove or disprove the theory that testosterone levels would rise based on the presence of a toy gun. The independent variable consisted of a pellet gun identical to a Desert Eagle handgun for the experimental subjects and the Mouse Trap children’s game for the control subjects. The dependent variable was the amount of hot sauce each test subject placed into individual cups for the next test subjects. The population studied for this research were 30 male college students willing to provide saliva samples. The procedures that were followed were simplistic. Each of the men provided

According to sociobiology our sex, or, our biological differences are what determines our gender. Sociobiologists suggest that biological elements such as our hormones, chromosomes and the size of our brain are what influence our behaviour and consequently what differentiates our gender. Because men produce more testosterone and androgens than women, which are linked to strength and aggression, sociobiologists argue that this explains men’s dominant and aggressive behaviour. (Haralambos & Holborn, 2000)

Testosterone belongs to a class of male hormones called androgens that is vital for sexual and reproductive development. The National Institutes of Health regards “testosterone as the most important male hormone”(Rettner). Although the primary role of testosterone directly relates to males, women also produce testosterone at lower levels. Women’s total levels are about a “tenth to a twentieth of men’s levels”(Rettner). According to the Mayo Clinic, this hormone plays a role in sex drive, sperm production, fat distribution, red cell production, and maintenance of muscle strength and

They believe that those same androgens Wisniewski (2012) discussed cause sex changes that occur in the ultrastructure of the nervous system, specifically affecting brain areas that relate to behavior. Additionally, they allege that testosterone levels in boys spike significantly in something of a mini-puberty in the first few months after birth, creating an excellent opportunity for ethical human research and a basis for longitudinal studies. In research regarding later development, Alexander and Wilcox found that girls exposed to higher androgen levels in utero show stronger preferences for male-typical toys and playmates. Additionally, they have stronger male related personality traits such as aggressiveness and reduced interest in more feminine toys (2012). Their review suggests that the increased masculine behavior cannot be attributed to socialization (Alexander & Wilcox, 2012), implying that either imposed gender roles did not change the behavior, or the behavior was accepted and gender roles were modified or not imposed at

Testosterone replacement therapy, also known as TRT, has become more popular recently. Men, who have lower testosterone levels, can use TRT to improve their energy levels, reinvigorate their sex drives, and stabilize their moods. As the popularity of TRT has risen, however, so have the myths surrounding its use. It is important to sift through the myths surrounding testosterone replacement therapy and get to the truth.

Biologically, there are some differences between males and females. Boys do tend to be a bit more aggressive, while girls are usually more verbal. Males also have better spatial skills, which research seems to contribute to their higher testosterone levels, as women with higher testosterone also seem to have greater spatial reasoning skills. (Kimura 50).

The androgens affect males by controlling the onset of puberty, biological fertility etc and the estrogens are important to females hormones which control the timing of biological maturity and menstruation. Girls exposed to higher levels of androgen are defeminized in sex type interests, abilities and behaviour, but not core gender identity. “Some studies by John Money and his colleagues have been made of girls whose mothers received excessive amounts of androgens during pregnancy (to reduce the likelihood of miscarriage) .The babies developed Androgential Syndrome. As they grew they tended to be more aggressive and “tomboyish”, and less feminine.

Both glands produce two distinct hormones, but produce differing amounts of each hormone. Masculine hormones such as androgens and testosterone are predominately produced by male testes. These hormones at high levels can be related to aggressive behavior regardless of sex, but high levels are most commonly found in males. High levels of feminine hormones or estrogen, most commonly found in females, have recently been linked to aggressive behavior as well. While high levels of estrogen in females and high levels of testosterone in males have been linked to aggressive behavior, normal levels of these hormones have been known to cause aggression as well. Although these hormones have been related to human behavior, scientists have concluded that these hormones alone do not dictate behavior (Morris & Maisto, 2005).

According to WHO.com, the biological differences in male and female is determined by the chromosomes and phenotypes of a human beings. As we are all created with an equal amount of 46 chromosomes, therefore our biological standpoint makes us equal yet with different physical appearances