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.
infographics
15 Things You Should Know About Marijuana
For thousands of years, marijuana or cannabis has been used for different purposes, including medicinal purposes. Although in the 20th century, many countries banned the
PositiveMed Team
Sep 24, 2012
