Little is understood about what actually happens to our brains during orgasm - but a video taken an MRI scanner shows for the first time how many regions of the brain are affected.
Scientists say that rather than a few, isolated areas of the brain being affected, the orgasm affects more than 80 brain regions.
The scan was taken of Nan Wise, a 54-year-old sex therapist, who volunteered to sit in an MRI scanner while stimulating herself.