 
Sexual Maturation in human beings
Human reproduce by sexual method.
In this method male reproductive cells
fuse with female reproductive cells.
But, when do these males and females
start producing reproductive cells?
 
 
Humans start producing reproductive cells
by the beginning of a period called puberty.
At what age do boys and girls enter  this puberty?
There is no specific age,
but they enter into puberty in adolescence.
Adolescence is the stage between childhood and adult hood.
 
 
We can notice the onset of puberty in boys and girls with
some noticeable changes happening in their bodies.
Some changes are common in both boys and girls. like
 
 
thick hair growing in new parts of the body such
as armpits
and the genital area between the thighs,
which can also become darker in color
Thinner hair can also appear on legs and arms.
The skin frequently becomes oily
and they might begin to develop pimples.
There are certain changes observed only in boys like
Growth of hair on the face
voice begins to crack
The penis occasionally begins to become
enlarged and erect.
The changes observed only in girls are
breast size begins to increase, with
darkening of the skin of the nipples at the tips of the breasts.
They begin to menstruate
All of these changes take place slowly, over a long period of time.
 
They do not happen at an exact age in all.
It depends upon the hormone levels and genetics of the individuals.
 
As people are different  in general body
features like height, weight, skin color etc.
people also will have differences in  secondary sexual characteristics.
like body hair growth, growth of  beard and moustache, penis size, breast size etc
 
 
So we have seen the changes that happen during puberty
But how  these changes are linked to the reproductive process?
 
changes in puberty helps in the process of reproduction and child birth.
 
 
 
 
 
 
 
 
 
 
 
 
