The forum that has carried on a snicker-free conversation on the female form surely can handle this question too:
Have any of you who get periods noticed any chance in their frequency?
I'm rather thrilled that after menstruating somewhat irregularly (every 30-39 days) in the last two years, I'm now back to 28. (I'm in my early mid 30s. I've eaten mostly about 1500 cal daily on average, and moved moderately plus did yoga, biking, and weight lifting in the last month.) Wonder if anyone else's flow has been affected by the lifestyle change.