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Blame it on pheromones. Even if you're not conscious of it, they're working.

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โˆ™ 2009-08-23 07:27:19
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Q: Why do women have the same menstrual cycles in a household?
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Do women periods start at the sametime when they live in the same household?

It has been shown that after some time, women who live in close proximity to each other begin to synchronize their menstrual cycles.

When do the ovarian and menstrual cycles cease?

The ovarian and menstrual cycles are the same thing, these stop when a woman has gone past menopause. Menopause starts between ages 45-55 and this is when the reproductive system starts to wind down, women's cycles can be irregular during this time and eventually stop.

Is it possible that my female cat goes in heat when I'm on my menstrual cycle?

The theory that when women live together, their menstrual cycles become synchonized, has been debunked. It is nothing more than an old wives' tale, or an urban legend. Since human menstrual cycles don't synchronize, I don't see why human-feline menstrual cycles would synchronize, either. It is, of course, possible that your cat goes into heat at around the same time that you have your period, but if that is the case, then it is just a coincidence.

Can someone else being on the contraceptive pill affect your menstrual cycle?

No it shouldn't effect your menstrual cycle as you are not on any medication. However, it is possible for women who closely associate with each other or live together, for their cycles to arrive around the same time.

What is it called when a lot of girls living under one roof have their cycles at the same time?

Menstrual Synchrony

Do dogs really have menstrual cycles?

No, dogs do not have a menstrual cycle like female humans do.Dogs will bleed when they're in heat, but that's not the same thing at all.

Why do women have their period around the same time?

Women have their periods when they are due their periods due to their menstrual cycle.Women do not all have their period at the same time, the idea of menstrual synchrony is a myth.

Do woman always have the same menstrual cycles every time of the month?

Not necessarily. Stress can delay menstruation, but for most women, their cycles are pretty regular at 28-29 days. Please note that months are 30-31 days long, so it won't be the same day of the month every month.

Do women that work together get on the same menstrual cycle?

Yes, they often do.

The average length of the menstrual cycle?

The typical menstrual cycle length is around 28 days long, but everyone is different. Menstrual cycles will not always be the same length, up to a weeks variation from your average cycle is normal.

You were late five days then got your period you are never late what can be happening?

You were five days later than you predicted - this prediction was based on your average menstrual cycle length, but menstrual cycles change and they will not be exactly the same throughout your entire life. Anything up to a weeks variation from your average menstrual cycle is normal, also things such as ill health or stress can delay your menstrual cycles too.

Why do your periods start earlier every month?

Your periods aren't determined by the dates on the calendar, they are determined by your menstrual cycles and your cycles will never perfectly sync up with the calendar months. The average menstrual cycle is 28 days which is shorter than a month, cycles can change, and months aren't all the same lengths - there's no reason at all to think your period would always occur on the same day every month.

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