Man

Leonardo da Vinci's Vitruvian Man is generally considered to be one of the finest artistic studies of man's proportions.

For the history and usage of the word "man", see man (word)

A man is a male human, in contrast to an adult female, who is a woman.

The term man (irregular plural: men) is usually used for an adult, with the term boy being the usual term for a male child or adolescent (sometimes also applied to adult men). However, the term is also used for a male human regardless of age, sometimes even extended to more primitive humanoids then the present species Homo sapiens sapiens, as in apeman.

Puberty

Michelangelo's David is widely considered to be one of the finest artistic portrayals of a man.

When a boy begins puberty, it is the confirmation that he will be transformed into a man. He will develop more muscle and body weight. He will get taller and broader. He will gain body hair i.e. hair will develop under his arms, around his face and sometimes on his chest. His genitals will grow and will be surrounded by pubic hair. Once a boy has completed puberty, he becomes a man and then has the organs to reproduce.

Age

Manhood is the period in a male's life after he has transitioned from a boy. Many cultures have rites of passage to symbolize a man's coming of age, such as confirmation in some branches of Christianity, bar mitzvah in Judaism, or even just the celebration of the eighteenth or twenty-first birthday.

A boy is a male human child. For many, the word man implies a certain degree of maturity and responsibility that young men in particular often feel unprepared for; yet they may also feel too old to be called a boy. For this reason, many avoid using either man or boy to describe a young man and prefer colloquial terms such as bloke, lad, chap, fellow, guy or the like.

Biology and sex

Photograph of a nude man by Wilhelm von Gloeden, ca. 1895.

In terms of sex, men have various sexual characteristics that differentiate them from women. Just as in women, the sex organs of a man are part of the reproductive system, consisting of the penis, testicles, vas deferens and other sperm cords, and the prostate gland. The male reproductive system is oriented around producing and ejaculating semen which carries sperm and thus . Since sperm that enters a woman's uterus and then fallopian tubes goes on to fertilize an egg which develops into a fetus or child, the male reproductive system plays no necessary role during the gestation. The concept of fatherhood and family exists in every human society.

Human male genital area anatomy

The secondary sex characteristics, such as body hair and muscle growth, are involved in attracting a mate or in defeating rivals. But these secondary traits are also often related to reproduction in some manner. In contrast to women, men have sex organs that are mostly considered to be external, although many parts of the male reproductive system are internal as well (such as the prostate). The study of male reproduction and associated organs is called andrology. Most, but not all, men have the karyotype 46/XY.

In general, men suffer from many of the same illnesses as women. However, there are some sex-related illnesses that occur only, or more frequently, in men. For example, autism and color blindness are more common in men than women. As well, some age-related disorders such as Alzheimer's disease appear to be more common among men, though whether this is due to a genuinely higher incidence or because men have lower life expectancies than women is uncertain.

Furthermore, in terms of sociology, men are more likely to be victims of conflicts, such as social isolation, alcoholism, violence and accidents, especially if the larger society is failing. This has lead to major changes in population structure in e.g. Russia, where men have a markedly lower life expectancy than women. When it comes to macrosecurity conflicts, men are often the ones fighting wars, and many genocides target only men.

Biological factors are usually not the sole determinants of whether a person considers themselves a man or is considered a man or not. For example, several men have been born without a typical male physiology (estimates range between one in 2,000 and one in 100,000), or some individuals with XY chromosomes can have an hormonal or genetic difference (such as androgen insensitivity syndrome), or another intersex condition; some of those intersex people, and others, who have had a sex assigned at birth seek reassignment later in their lives. (See also gender identity, gender role and transman.)

Additionally, 20% of males, particularly in the U.S., the Philippines, and South Korea, as well as Jews and Muslims from all countries, have experienced circumcision, a process of altering the penis from its natural state by removing the foreskin.

Gender stereotypes

Enormous debate in Western societies has focused on perceived social, intellectual, or emotional differences between men and women. These differences are very difficult to quantify for both scientific and political reasons. Below are a few stereotypical claims sometimes made about men in relation to women:
* More aggressive than women. However, in interpersonal relationships, most research has found that men and women are equally aggressive. Men do tend to be more aggressive outside of the home.
* More courageous and adventurous than women.
* More competitive but also more stubborn than women.
* More self-confident (even proud) and exhibit better leadership skills than women.
* Less emotional.
* More technically and organizationally skilled than women.
* More prone to abstract thinking than women.

Some of these differences have been supported by scientific research; others have not. All should be considered broad generalizations, subject to the enormous variations among actual men and women.

A number of the above stereotypes were not perceived in the same way as today (i.e., their applications to particular aspects and spheres of life, such as work vs. home) until the 19th century, beginning with industrialization.

In terms of outward appearance, few men in Western cultures wear cosmetics or clothing generally associated with female gender roles. (Doing so is generally stigmatized and viewed as cross-dressing.)

Gallery

Image:William Laney.jpg|A Tasmanian Aborigine manImage:Buddhadasa118.jpg|A Buddhist monk from ThailandImage:Rhumsiki crab sorceror.jpg|A man from CameroonImage:Sierra Madre indian - Carl S. Lumholtz 1895.png|An indigenous man from MexicoImage:Wheelchair tennis.jpg|A man from the United States playing tennis in a wheelchairImage:Kuarup3.jpg|Two indigenous men from BrazilImage:Tagore3.jpg|An Indian man (Rabindranath Tagore)Image:Sabaa Nissan Militiaman.jpg|An Iraqi militiamanImage:Old Hmong Man (Sapa Vietnam).jpg|An old Hmong man from VietnamImage:Major.JPG|A Native American man meditatingImage:Soldier running in water.jpg|A U.S. Marine running through waterImage:Bedouin man with Fez.jpg|A young Bedouin man

Man: Encyclopedia BETA

Contents

Man

Puberty

Age

Biology and sex

Gender stereotypes

Gallery

References

Further reading

See also