text: No Good and Reasonable Answer.\n\nSex whether the act or just the sexual fantasy elevates the blood pressure, heart rate due to the catecholamine discharge, causing vasodilation in some parts like the brain, and the lower head, and constriction in some other parts like the stomach and the heart and lungs.  In fact there is such a thing as ruptured aneurysm , stroke , subarachnoid hemorrhage and heart attack during sex.\n\nMay be do it infrequently but add more the emotional support like whispering sweet nothings before , during and after and long after the event.  As one gets older, emotional comofrt becomes more significant than the sexual act itself.