So how did Shannon Lucid manage, all that time up there? Imagine the “slosh factor”. Or better yet, don’t. Did they give her some kind of medication that stopped her periods altogether?
What about digestion? Our digestive systems are organized top to bottom, to work with gravity. Do astronauts get gas all the time? Indigestion? Heartburn? Constipation? Or…you know. Ew!
Are there risks to being an astronaut that they never mention on The Learning Channel?
Well, I do remember that John Glenn requested and was given high-fiber wafers for his shuttle flight, which suggests that constipation might have been a possibility. Of course, since he’s a politician, being full of it is sort of an occupational hazard 
“Slosh factor”? Are you remotely familiar with how mestruation works in real life? I haven’t the foggiest idea what female astronauts usually do, but there are any number of ways to avoid getting your period altogether. I assume that she went onto DeproProvera or Norplant or some equivalent. I also don’t think that using a tampon would be any more difficult than handling other bodily functions.
Would her orbit have affected her cycles in any way? Isn’t there a connection between the lunar and feminine months? Would someone on a deep space flight find her 28 day cycle all akimbo (sp?)?
Uh, I don’t think the Lunar month has anything to do with menstruation. It’ll happen ever 23-28 days regardless of where you are, or how those 23-28 days are measured. If I’m somewhere in space and 23-28 days are measured as 5 days, than I’ll menstrate every 5 days.
You see?
In a word, MonkeyMan, no.
Long-term weightlessness has all kinds of effects on the human body that aren’t completely understood (or even documented) yet, so there is the possibility that women would experience some kind of disruption. But it would have nothing to do with the moon in any way, nor does menstruation here on earth.
Uncle Cecil himself also says that the moon/menstruation link is phony:
Alright, alright. Shows what value 8th grade health class has in real life (that was also sex ed. Lot of good that did me).