Yoga may have taken 5,000 years to evolve into a western phenomenon, but its 21st-century profile has rocketed at lightning speed. The number of US practitioners has doubled in just a few years, reaching 37 million in 2016, while there are half a million in the UK. The global market is estimated at $80bn (£62bn).
Pilates, yoga’s more modern associate, has seen similarly rapid growth since it was devised almost 100 years ago. Increasing stress levels, coupled with a greater focus on physical health and wellbeing, are cited as factors in the growth of both, as well as celebrity endorsements – Madonna and Geri Halliwell have long sworn allegiance to yoga, while Beyoncé and Emma Stone fly the flag for pilates.