Arunachalam Muruganantham, created a sanitary pad revolution in rural India which is extraordinary to hear. There are men who squirm at the mention of a woman’s period. Then there’s Muruganantham, who thought nothing of examining strangers’ used pads. After all, he was on a quest to produce low-cost sanitary napkins for India’s poor. “Menstrual Man” tells the inspiring story of this unlikeliest of heroes.