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Because the fat girl is healthy one. With out maturity periods can not ensue. Sometimes due to some other factors as well. Growth hormones, estrogens and other hormones may be flowing more than normal in the body.
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Genes Found Related to Onset of Menstruation and Menopause

Chubby young girlws mensturating
Chubby young girlws mensturating
Chubby young girlws mensturating
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Genes Found Related to Onset of Menstruation and Menopause | Live Science

Girls who begin menstruation earlier than average have a greater chance of being short and fat and are at greater risk for breast cancer and endometrial cancer later in life. Now scientists have found two genes involved in determining the onset of menstruation. The study also found genes related to the onset of menopause. Early menopause increases risk of osteoporosis and cardiovascular disease. Further research into these genes could improve understanding of all the related diseases, researchers said. The findings were reported in the journal Nature Genetics today. Some researchers think puberty is starting earlier these days, but the idea is controversial.
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Puberty Comes Earlier and Earlier for Girls

The first menstruation is an event that every woman remembers for the rest of her life. It triggers a wave of emotions, which depend on our psychosocial and cultural factors. The average age of girls at their first period is twelve and a half, but girls can get their first menstruation menarche as soon as nine or ten years of age.
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From both social and medical perspectives, it is often considered the central event of female puberty , as it signals the possibility of fertility. Girls experience menarche at different ages. The timing of menarche is influenced by female biology , as well as genetic and environmental factors , especially nutritional factors. The mean age of menarche has declined over the last century, but the magnitude of the decline and the factors responsible remain subjects of contention. The worldwide average age of menarche is very difficult to estimate accurately, and it varies significantly by geographical region, race, ethnicity and other characteristics.
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3 comment    
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22.08.2018 4:03:01 Masar:

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