A member asked:

Can too little sleep or change in sleep pattern affect timing of cycle? period 3 days late by my calculation. usually vry regulr. not sexually active, so not pg. no othr symptoms of pcos, thyroid, etc

A doctor has provided 1 answer
Dr. Gilbert Ramirez answered

Specializes in Emergency Medicine

Yes: Circadian rhythms are tied to many hormonal processes in the body and menses are no exception. Diet, exercise and stress can also effect timing and duration.

Answered 7/15/2014

3.9k views

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