@humanbodyfactsdailyhq: Ever wondered what actually happens inside the body when a period starts? 🩸 Each month, hormones prepare the uterus for a possible pregnancy by building up its lining. If pregnancy doesn’t happen, hormone levels drop and the uterine lining is shed through the vagina. This is what we call a period. The human body is amazing. 🧠🩷 #HumanBodyFacts #PeriodFacts #Menstruation #WomensHealth #healthfacts