Estrogen is what makes a woman female. Sexually and in every other way. It's testosterone that makes men and women horny though. Women have a bit of that too.
Before Puberty, girls grow as children. They do not develop sexually until Puberty and hormones start.
Hormones.
The same could be asked of boys. It probably has to do with all those hormones.
As boys mature, they develop these hormones that attract them to girls. Scientifically, it's hard to explain.
Girls develop breasts due to the hormones in their body. Usually, breasts are developed at the age of 10-13 They have different hormones to boys, which is why boys dont have breasts.
n males the key hormone is testosterone. In girls it is oestrogen
The main cause of change at puberty are started by the production of our hormones(testosterone for boys and the estrogen and progesterone for girls)
When women grow beards it is due to the same hormones that causes men to grow beards, testosterone. Both girls and boys have testosterone in their systems, just like both boys and girls have estrogen in their systems.
Girls are sexy
Its because girls have hormones. Hormones make the girls have mood swings and be emotional and annoying. This usually happens to girls that are starting puberty.
Maybe, but for most girls it happens about 12-17 years old. It would take a 7 year old's body to develop faster and produce the needed hormones. Very few girls have this happen to them.
Testosterone- boys estrogen- girls