78% of women aged 40–54 report heavy menstrual bleeding during perimenopause — but most are told to just expect it. VibranceWay's Cathy explains the real cause: estrogen dominance from skipped ovulation, which builds the uterine lining too thick. She covers flooding episodes, the iron deficiency link that worsens brain fog, how to investigate structural causes, and the evidence on tranexamic acid, the levonorgestrel IUS, progesterone therapy, and iron supplementation.