India, Jan. 21 -- Ever notice the bizarre phenomena when suddenly every woman who spends time together gets periods at the same time? Like some invisible connection, the period cycles, whether in the same hostel room or family, all mysteriously align? There's actual science behind menstrual cycle syncing, and it is a different story than you think it is.ALSO READ: Gynaecologist shares 5 reasons why periods are more painful and irregular during winterHT Lifestyle spoke to Dr Prathima A, consultant, obstetrician and gynaecologist at Motherhood Hospitals, Bangalore, who explained the science behind this common phenomenon.

Dr Prathima acknowledged that while women who spend time together may get their periods at the same time, there's nothin...