The Chinese "sex-yoga" thing also includes advice about avoiding orgasm (for both men and women, I understand). The idea being that the enlivening effect felt through the day more than compensates for the loss of a seconds long firework display. They could be on to something but it sounds unnatural to me. Orgasm = guilty pleasure.
Re the herbs: in this day of the internet I'd imagine you could locate the secret recipe used by your herbalist to the stars. A Google came up with the following Chinese aphrodisiac ingredient: goat penis. Let me know if that boosts your sex life.
