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.


infectious diseases
What’s Dog Flu and How Dangerous It Is?
Dog flu or canine influenza is an infection which is caused by either of two virus strains H3N8 or H3N2. Of the two viruses, H3N2




