How can stress scientifically affect menstrual cycle?
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When you are stressed it can interfere with you ovulating, which delays your period.
Your cycle runs in two phases: a follicular phase and a luteal phase. In the FP hormones trigger your ovaries to prepare to release a ripe egg. Once this happens (ovulation) different hormones take over in your LP. These hormones make your body build up your uterine lining and gear up to house a baby. When no fertilized egg appears, your body is triggered to shed everything and your period starts over one more time.
For many women with regular cycles LP is very close to 14 days long, so for simplicity sake if we say EXACTLY 14 days from ovulation. Most women ovulate around day 14 or so. Some as early as day 10-11 and others very late normally. To make it simple well say exactly 14 days, giving us a 28 day cycle.
If large amount of stress interfere with your hormonal shift to pull the trigger on ovulation, you may not ovulate until day 19 or 25, and in which case you won’t have your period on day 28, you’ll have it on day 33 or 39 or whatnot
Stress actually impactes your hormones, which then impact your cycle. I’m sure someone will go into more detail, but that’s the backbone of the explanation.
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