A midlife crisis is a normal transition experienced between ages 40-60 where people take stock of their lives and may make changes. It can involve feelings like unhappiness, boredom, or confusion about identity and life choices. Men may experience issues like decreased sex drive, sleep problems, or changes in appearance. For women, it can involve doubts about value or career, lost confidence, or questioning choices. Both men and women commonly deal with changes in sexuality including issues like erectile dysfunction or reduced libido during this phase. Menopause is also a natural life change where hormone level changes can cause symptoms for several years before and after the last period.