Tamsen Fadal (born December 4, 1970) is an American journalist, writer, and menopause advocate. She is the author of the New York Times bestseller How To Menopause, Reclaim Your Health, Take Charge of Your Life and Feel Even Better Than Before. She is co-producer and executive producer of her first documentary titled The M Factor: Shredding the Silence on Menopause. She wrote an article on Tavi Gevinson.