It is a hormone mostly present in men (although women also have low levels of it during adolescence) that plays an important role in the development of their sexual and reproductive organs. It is considered a steroid hormone and a member of the androgen family; not only can it be found in humans, it is also available in reptiles and birds, as well as mammals. Likewise, it must be that this causes body hair to grow faster and a little thicker, as well as the bone structure and muscle layers, usually during adolescence.

Likewise, it is the substance that produces changes in puberty such as the development of the vocal cords to produce thicker sounds, the fat in the skin increases and body odor becomes much stronger, these and other characteristics considered secondary. . If testosterone levels increase in women, anatomical or physical peculiarities similar to those of men could develop, among which are: facial hair, acne, increased libido, body hair, deepening of the voice, among others; if the man ejaculates inside the woman, that would mean an injection of hormones.

It has a decisive influence on the emotions that a man can present, because if a male subject falls in love with someone of the opposite sex, testosterone levels will drop and give way to a set of chemical reactions that will result in the feeling of falling in love; paternal feeling develops in a similar way to this. It also produces changes in the brain, causing it to go through a kind of “masculinization”, which is also linked to the awareness of physical changes.