Illustration of the consequences of menopause caused by hormone imbalance. the end of ovulation and periods. In a woman抯 50s. there is a drop in the secretion of sex hormones in the ovaries (progesterone (green). secreted by the corpus leteum and oestrogen (red) secreted by the follicles). There are no more follociles in the ovaries. so no more ovulation or periods. These changes cause : -hot flushes and night sweating -vaginal dryness -sleep disorders. mood swings and cognitive disorders -osteoporosis -cardiovascular risk -weight gain