Aerial, Bikram, Yin, Baby, Dog, Goat, Tantrum, Karaoke, Ganja and even Beer yoga: Are faddish yoga trends harming the integrity of the discipline? “Yogic practice should be performed in a calm and quiet atmosphere with a relaxed body and mind,” states guidelines issued by the Indian ministry in charge of yoga (AYUSH). However, the atmosphere at the Suburb Yoga studio in Zurich is anything but calm and quiet. It is 7pm on a Friday and instead of headbanging in a nightclub, 11 women and two men are tuning into the latest craze in the city: Heavy Metal Yoga. There is definitely a market for yoga-induced relaxation or stimulation as in the case of Heavy Metal yoga. A Swiss Sport report published in 2014 estimated that 7.1% of the population between the ages of 15 and 74 practiced yoga, tai-chi and qi gong. The average practitioner is a 46-year-old woman who attends classes at least 45 days a year. In the US, the biggest market for yoga, the number of practitioners more than ...