Back in the 1960s, a woman doctor in Japan created a powerful drug to help mothers who hemorrhage after childbirth.
The medicine is inexpensive to make. Safe to use. And stops bleeding quickly by helping keep naturally forming blood clots intact.
The drug's inventor, Utako Okamoto, hoped the drug called tranexamic acid would be used to help save moms' lives.
Every year about 100,000 women around the world die of blood loss soon after a baby is born. It's the biggest cause of maternal death worldwide.