Several things actually but the main things are these:
1) makes a man's penis erect
2) kills pain to a point
3) causes a man to do/feel manly
4) causes a man to develop their physical traits
Testosterone is a steroid hormone from the androgen group.
In males, testosterone and androgen are the principal sex hormones responsible for puberty. The hormone that dominates female development is estradiol and estrogen.
Testosterone.
Testosterone is Testosterone - sex hormone responsible for developing male secondary sex characteristics it is produced in the Testicles.
The name of that hormone is testosterone. This hormone is responsible for secondary sex characters in the boys. This hormone makes them aggressive. It is secreted by the endocrine cells from your testes.
The Predominant hormone in males are testosterone
Testosterone is a hormone that is responsible for many of the physical characteristics specific to adult males. It plays a key role in reproduction and the maintenance of bone and muscle strength.
testosterone
That is because the hormone responsible is testosterone. This hormone is produced by the testis and in males the hormone levels are really high in puberty.
Testosterone is the hormone that causes elongation of the vocal cords and thus a deeper voice.
Testosterone does not produce a hormone it IS a hormone.
The medical term for hormone produced by the testis is testosterone. This is a hormone that is produced by males and is responsible for various functions in males.
The chief hormone in males is testosterone. In females it is oestrogen.