And it also brought ballet fitness into the press ... to bring it into your home. You feel better, you have more energy. Your body feels stronger. You start to see results. It's really, really ...

Most physical workouts usually fall between the first two categories, but neuroscientist Nicole Vignola explains that ballet and barre involve all three, which is particularly valuable for your brain.

Barre is a fitness class which is inspired by ballet, that first came to prominence in America in the 1970s. The workout focusses on your core with an aim to improve balance and posture.