Running and Zumba classes remain no more exciting after menopause hits a woman. Beside the general hormonal changes scientists have struggled to offer a specific reason for this reports the Daily Mail. A team at the University of Missouri has identified a link between ovarian hormones and dopamine levels in the brain that make exercise feel so good. This can lead to a new study to help women treat their lethargy. These symptoms signal onset of menopause. Postmenopausal women are more susceptible to weight gain and health issues said Dr Victoria Vieira-Potter specialised in nutrition and exercise physiology at MU.