style=”color:var(–color-text);font-size:1rem;”>From a new study conducted by the Aarhus University, Denmark, women can now tell when their sons will go into puberty. Simply by checking when they had their first menstrual bleed.

The study states that the age at which women have their first periods is correlated with the age at which their boys launch into puberty, or starts showing signs of adolescence.

To come up with these findings, the researchers surveyed 15,822 children who were born between year 2000 and 2003. 7,697 were boys while 8,125 were girls. A follow up was done on the kids until Oct 2016. Over this period the researchers interviewed their mothers during pregnancy.

They were also issued with questionnaires where the mothers were asked to state when they had their first menstrual cycle. Another questionnaire was issued to the kids on turning the age of 11 up to 18 tailored to discover their puberty start up, filled every six months. 71 percent responded fully.

” Our review established that mothers who reported having their first menstrual bleed earlier than their peers had sons with signs of puberty starting earlier than their peers too.” Said Dr. Nis Brix who co- authored the study. “If the mothers started puberty later than their peers then the sons experienced first ejaculation, growth of armpit hair and development of pimples on the face later than their peer sons.”

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The study also found out that the largest difference was when hair started growing in the armpits. “This started on approximately two and a half months earlier than the mothers,” the study said. ” The children’s voices broke nearly two months eralier, their ejaculation occurred about one and a half months earlier, while development of acne and pimples commenced two months earlier. ”

The study also vindicated earlier research endeavors which have found direct links between a mother’s first menstrual bleed and her daughter’s.

” The only notable difference in girls is that the development of breasts will usually start six months earlier than the mother’s among daughters whose mothers had early periods than their peers. It will also start up to four months late for daughters whose mothers went into puberty later than their peers .” the study said.

This study was published in the journal Human Reproduction

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