In a qualitative analysis of 130 Reddit posts, researchers examined how perimenopause and menopause affected women's career sustainability, finding that brain fog, fatigue, mood changes, and anxiety were associated with reduced confidence, workplace performance concerns, and threats to professional identity. The accounts revealed interconnected challenges involving health, happiness, and productivity, alongside experiences of supportive managers, online peer support, reduced working hours, and career reassessment that helped some women adapt to the transition.