their menstrual cycles start becoming in sync with eachother? my boyfriend told me this the other day and i've never heard of it before. I don't hang out with girls so i don't know!
2006-07-14 05:19:12 · 14 answers · asked by Alie 3 in Health ➔ Women's Health
That is a bit strange.I'm glad i've never had to live with two girl's with in sync cycles.
2006-07-14 05:27:51 · answer #1 · answered by doodle 1 · 0⤊ 0⤋
Synchronous menstruation was first described in 1971 by researchers McClintock and Stern. It is a proven occurrence, borne out by additional studies. Though they are still unclear as to exactly why it occurs, the most widely accepted theory is that it is due to pheromones. Others think it's due to some evolutionary carry-over from prehistoric times, when it was common for men to take multiple mates to ensure the survival of the species, but the pheremone theory makes more sense...
Source(s):
McClintock, M. K. (2000). Human pheromones: primers, releasers, signalers or modulators? In K. Wallen and J. Schneider (Eds.), Reproduction in Context: Social and Environmental Influences on Reproductive Physiology and Behavior. MIT Press. Pp. 355-420.
McClintock, M. K. (1998). Whither menstrual synchrony? Annual Review of Sexual Research, 9, 77-95.
2006-07-14 15:31:27 · answer #2 · answered by Endo 6 · 0⤊ 0⤋
Yes that is very true! Especially if you live in the same place as the other person...like in a dorm for college or a cabin for a long summer camp. It is because of hormones that are secreted into the air and the "strongest" girl makes the other girls in sync with her which is kind of funny.
2006-07-14 12:28:28 · answer #3 · answered by hawaii gurl 06 3 · 0⤊ 0⤋
it is kinda true my mom and i lived with each other for 3 years after i started and we were preety close she would start and by the time she stopped i started it was really weird and to make it worse the hormones going through the air at that time of month is horrible im glad im the only one in the house now and my step mom is in menopause
2006-07-14 12:55:59 · answer #4 · answered by Anonymous · 0⤊ 0⤋
It's happened to me and 2 of my sisters. We're back to back now. Since only 1 out of the 3 of us is regular though, we're never in any particular order, but always back to back in a row. It's weird to me....
2006-07-14 12:45:33 · answer #5 · answered by Anonymous · 0⤊ 0⤋
yes it's true, don't necessarily have to be hanging out all the time. Happened with me and my sisters, and also happened with me and the other females on my night team at work!! Amazing, isn't it!
2006-07-14 12:28:33 · answer #6 · answered by puzzledfemale! 3 · 0⤊ 0⤋
actually it is true, but not for everyone.
women who spend a long time together often snyc up to eachother's hormones and that ends up syncing the period.
2006-07-14 12:22:46 · answer #7 · answered by boozenaked 2 · 0⤊ 0⤋
yes it does, its cause of the hormones and from being next to eachother a lot u breathe eachothers air
2006-07-14 12:27:57 · answer #8 · answered by KelLzZz 3 · 0⤊ 0⤋
Yes, this is true -- the phenomenon is called "synchronous menstruation." They suspect it's due to pheromones.
2006-07-14 12:24:05 · answer #9 · answered by Meg 5 · 0⤊ 0⤋
yes, has happened to me with many friends over the years.
2006-07-14 12:22:36 · answer #10 · answered by Nova J 3 · 0⤊ 0⤋