among the majority of members of the track2 lifestyle community because of the thin inner lining. I'm no expert; but I suspect its one of the reason why AIDS is more common among them.

Menstrual 'pollution' is one of the anti-female prejudice among hindus(and hasidic jews as well if I remember rite). An alternative cavity might alleviate the above mentioned problems.

implanted micro-electrodes could be a measure to deter unauthorised intrusion.

Thank U for pointing out the pelvic muscle anchor issue