Everyone knows someone who does it. The moment they sit down, their legs come up onto the chair. Sometimes they sit cross-legged. Other times, they tuck one leg underneath themselves or curl up into a ...

Most of us were told off at some point for how we sat. “Don’t cross your legs, you’ll ruin your knees.” “You’ll get varicose veins.” “Sit properly.” “Sit up straight.” It belongs to that familiar pile ...