Begins puberty before before?
The evidence collected by scientists clearly suggests that puberty begins before it used to be. Some of these evidence evaluate the declining age of menarche, which is the onset of girl's menstruation. Other assessments are considering the first ejaculation erection of boys or general onset of symptoms of puberty, such as buds, and hair growth.
When evaluating menarche, the average first menstruation aged 12.2 years in most Western countries is. On the other hand, about 100 years ago, the average age of puberty, as evaluated by the first menstruation, was 13.9 years old. This is obviously a significant difference.
While a consistently greater percentage of girls begins with puberty before boys, evidence suggests that boys can also go through earlier. About 7% of the boys achieve sexual maturity at the age of eight. Even 40 years ago, less than 1% of boys achieved at this age. Better Ořechrition is considered the main cause. More body fat and more body mass means that the body is physically prepared to start this phase. Excess body fatHowever, as a result of less exercise, it often leads to early development.
Some suggest that chemicals present in foods such as hormones administered to animals, which are then consumed by humans, can lead to earlier development of puberty. Some studies have also shown that stress really corresponds to earlier adolescence, especially among girls.
The earlier age of puberty should not be confused with the medical definition of premature puberty. This is defined as an early onset of sexual development. Girls entering puberty eight years ago and boys who start nine years ago are assumed that they have a premature puberty. This condition is most likely to occur in girls who are obese. However, it can also be genetic. Sometimes timely development, especially in very young children, indicates tumors causing hormonal imbalances or production.
premature puberty can be very nituEye, especially for young girls. Their rapid ripening creates announcements between peers and can cause social problems. However, initial grades such as pectoral buds may not always follow the early onset of menarche.
Especially for girls, those who seem to go through puberty later and have later menorche rates, are often very active in sports, small in construction or that mothers with later menarche. It is not uncommon for girls who are competing athletes will start their period after 15 or 16 years.