In the late-1970s wellness was kind of a big deal, although not as much of a big deal as it is today. Estimates vary as to the international value of the contemporary wellness industry, but such numbers usually reach into the trillions. Gwyneth Paltrow’s Goop is the current market-leader, with an empire worth some $250m (£196,225), and it is Paltrow’s personal development ideas, celebrity gloss and expensive products, some of which have unverifiable health claims that have done much to inform public attitudes towards wellness. For some, wellness is a bespoke, individually focused approach to health that encompasses diet, fitness, spirituality and an awareness of the delicate balance between the mind and the body. For others, not least…