PAISLEY, Scotland - Research has long confirmed the health-promoting benefits of sexual intercourse. By strengthening the emotional bond between spouses, regular sexual intercourse has been shown to reduce the risk for heart attack by up to 50% in some studies. A new UK study adds to those findings revealing that only heterosexual intercourse - not homosexual sex or self abuse - has significant stress-reducing effects, as measured by blood pressure responses to stressful situations. The research conducted by Dr. Stuart Brody from Paisley University is summed up by its title: "Blood pressure reactivity to stress is better for people who...