Why do women and girls in the same household tend to have their periods at the same time?

I know that it sounds approaching a myth, but it really does ensue! Does anyone know why?
Answers:

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I agree near the previous responders. Each time I've worked surrounded by an organization next to women, we adjectives seem to synchronize. It happen contained by university and it happen at home.

I don't know if it's pheromones or what, but it's not unusual.

Amazing, isn't it?

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Yes it does arise. I lived beside 17 girls contained by a dorm. Each of us begin our Periods near within a few days of one another. I feel sorry for our dorm parents because everyday of the month one of the girls have their time of year. Dorm Parents have to concordat next to the PMS everyday.
Please see the intertwine below for the answer to your cross-examine. hope it help

vaginal discharge?

It is not a myth at adjectives, purely humour. Wait till u get hold of to college and everyone within the dorm get on one and the same calendar...to be precise crazy! Happens every time more than two females inhabit in a close proximity. They adjectives ovulate and enjoy their period at like time. It's only just spirit.

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Women (and men) camouflage odorless molecules, call pheromones, contained by a posture as adjectives as sweating. In certainty, the sweat of plentiful mammals contains pheromone chemicals. The molecules from one woman bounce and jiggle their course airborne and waft to another. Receptors surrounded by the muzzle detect the pheromones and the second woman responds by shortening or lengthening her menstrual spell. Gradually, over the course of a few months, the period of adjectives the women living together synchronize here agency.

By the method, similar studies show that men's pheromones also affect women's menstrual period. Women respond to these pheromones by shortening their period and have them more regularly.