Here is an amazing fact about human body: On average, menstrual cycle is 28 days, from the first day of menstruation to the first day of next cycle. But the menstrual period of those women who are close friends or live closely together, for example in a dorm, gradually synchronizes (occurs at the same time).
While there is some debate over “menstrual synchrony”, but Pheromones (Airborne chemical signals) and sense of smell are believe to be responsible for this interesting phenomenon.
health
WARNING: If You See THIS Bug Around You – Get To A Doctor IMMEDIATELY!
While well-known pests like mice, rats, and cockroaches have their own dangers, there are plenty of non-native pests that can be incredibly dangerous to people.
PositiveMed
Dec 29, 2015
