Oh in regards to women... some have suggested orgasm for women have an activating affect on the kundalini. This maybe so, as my partner clearly states (and this is prior to her exposure to any esoteric knowledge what so ever) that she feels a massive energetic spike straight up the spine from the root to the crown, profoundly ecstatic with every orgasm. This in my interpretation is clearly a kundalini spike and may have an awakening affect on the charkas and neurology. Yet she is tired and sleeps after, but that may be neurological (brain chemistry, effects of serotonin and dopamine etc. and the refractory period) and not energetic loss, I suspect it is both. It is true from my perspective, that the general consensus is that women loose some energy, not problematic amounts unless one is having several a day (my observations may suggest one a day is problematic, as the loss may out way the stimulating/activating affects).
In the literature, it is considered that a womens time of loss is during menstruation, which is commensurate with a mans ejaculation. Also, there is profound loss due to child bearing, which is said to have the same effects as long term consistent ejaculations of a man, my empirical observations seem to bear this out also :-)
In kind regards,
Adam.