Acupuncture, which involves stimulating particular body locations with needles, sometimes electricity or heat, can modulate physiological responses.

“Acupuncture involves taking needles, and sometimes electricity and or heat as well, and stimulating particular locations on the body and through these maps of stimulation that have been developed over thousands of years, mostly in Asia, but now this is a practice that's being done many places throughout the world, they have these maps that speak to, oh, well, if you stimulate this part of the body, you get this response.”