"To sit cross-legged you need to have good hip rotation, as well as lower-back mobility so that you can get on the floor," explains Helen O'Leary, physiotherapist and director of Complete Pilates.

So, what’s the problem? According to Professor Adam Taylor from the University of Lancaster, there are number of reasons why sitting cross-legged is a no-no. “Research shows that sitting cross ...

If you have an algorithm similar to mine in the world of vertical video, there's a decent chance you've come across the criss ...