In this week’s Our Bodies, Our Lives column by UTMB Drs. Tristi Muir and Catherine Hansen: The average age of menopause is 51 years, with the onset of hormonal shifts in the early 40s. Nearly 50 million women in the United States are between 40 and 60 years of age. It is time for us to rewrite the rules. We need to redefine our relationships, revamp our identity, respond to the very real rewiring of our brains and reignite our passions, whatever they may be.