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
24 Healthy Facts That Will Blow Your Mind
1. You burn more calories sleeping than you do watching television. 2. There are more bacteria in your mouth than there are people in the
PositiveMed
Jun 21, 2013
