Hormone levels in women using contraception affect nerve activity involved in vessel constriction

After menopause, women's levels of estrogen and progesterone fall. Their formerly lower risk for heart disease equals, even surpasses, men's risk. One possible contributing explanation for the change in risk is that sex hormones affect the sympathetic nervous system (SNS), which controls constriction of blood vessels and participates in the fight or flight response. A new study by researchers at Western Ontario University is among the first to look at the hormone/SNS relationship in young women taking hormone contraceptives... via Health News from Medical News Today Read More Here..