Men and women

Man is a male human being, while woman is a female person.

Mainly, the man produces the hormone testosterone and the woman estrogens. For this reason, each one develops different characteristics.

The differences between men and women can be appreciated in physical, biological, psychological, social and cultural terms.

	Men	Women
Definition	Male persons.	Female persons.
Chromosomes	Genetically they possess the pair of XY sex chromosomes.	They have the XX sex chromosomes.
Fertilization	In fertilization, they provide a sperm that can be X or Y, which determines the sex of the baby.	Provide an egg with an X sex chromosome.
Functioning of hormones	Higher testosterone level, causing a more aggressive and dominant character. Testosterone levels also speed up metabolism, facilitating weight loss. Your level of prolactin production is lower.	Hormonal changes alter the menstrual cycle, causing fickle moods and the development of the maternal instinct. This usually makes it difficult for them to lose weight.. They produce more prolactin, responsible for producing breast milk and tears.
Primary (reproductive) sexual characters	The gonads, genital tract, and external genitalia: penis and testes.	The gonads, genital tract, and external genitalia: the vulva.
Secondary sexual characters	Lower voice and greater visibility of the Adam's apple. Increased amount of facial and body hair. Ability to build more muscles and more strength. More developed chest and shoulders. They are generally heavier and taller.	The voice is higher. They have less amount of facial and body hair. Relatively lower muscle capacity. Developed breasts. They are generally smaller in weight and stature.
Neural connections	They have more neuronal connections in the brain, the brain being larger and with a greater amount of white matter. There is a greater predominance of the left cerebral hemisphere.	They have more connections between the right and left hemispheres of the brain. This is usually denser and has more gray matter. The use of the right and left hemispheres is balanced.
Body temperature	Because they have greater muscle mass, their temperature is more balanced throughout the body.	Conserve core body temperature more effectively.
Senses	They have greater visual acuity, but paradoxically they have less color perception.	They have greater hearing and olfactory acuity. They distinguish more colors than men.
Sterilization	To prevent childbearing permanently, vasectomy is performed.	Female sterilization is performed with the ligation of the fallopian tubes.
Fun facts	Better focus on one activity at a time. They focus more on achieving goals. Traditionally they prefer action. They have a higher sex drive, because sexual intercourse is perceived as another physiological function. Tendency to baldness due to increased production of androgens.	They have the ability to perform multiple activities simultaneously. They are more willing to get socially involved. Generally, they prefer to talk and communicate both their feelings and their opinions. They need more affection and emotion in their sexual relationships. Less tendency to baldness due to lower androgen production.

What are men?

Man are all those people of male gender, also known as males.

Normally, the term is used to refer to the adult person, although it also refers to man when it is generalized to the entire human race.

Men have very different biological and physiological qualities from women. The production of testosterone causes a man to have more body and facial hair, a wider chest and shoulders, a larger Adam's apple, as well as an ability to develop muscles more easily.

In addition, men are the ones who determine the sex of the baby through the cell spermatozoon inserted into the female ovum.

The primary sexual organs in men are external, while in women they are located internally in their body.

The male predominance in society has led to the sexism. There are many trades, professions or activities that had traditionally been considered typically masculine in areas such as religion, politics, science or some sports, but, with the passage of time, women have conquered almost all spaces.

Other stereotypes have changed over time, however some paradigms are still valid, such as:

• Men are more rational and women are more affective and emotional.
• Physical aggressiveness in men and verbal aggressiveness in women.
• High sense of competitiveness in men and low sense of competitiveness in women.

What are women?

Women are the people of female. Normally, the term "women" is used to refer to adults.

The woman, due to the production of estrogens, have a narrow waist, developed breasts, less body and facial hair, wide hips, a wider pelvis, and generally a higher voice than men.

The woman is mostly in charge of the reproductive work, taking into account pregnancy, childbirth and lactation that allows the survival of the human species.

Natural or artificial contraceptive methods have allowed the woman or the couple to plan their offspring, notably reducing the number of children produced and allowing women to freely exercise their sexuality..

Women were traditionally considered the weaker sex, a paradigm that has been overthrown in most countries of the world.

Women have gained ground in different areas of society. In 1979, the United Nations Assembly approved the elimination of all forms of discrimination against women, becoming a great achievement for the fight for women's rights in society..

The movement feminist has waged a constant struggle for the recognition of equal opportunities and rights between women and men.

The International Women's Day is commemorated on March 8.

See also Types of feminism.