What is yoga all about

Do you know what yoga is all about? Yoga is an ancient and complex practice, rooted in Indian philosophy, which began as a spiritual practice but has become popular as a way of promoting physical and mental wellbeing. Yoga typically emphasizes physical postures (asanas), breathing techniques (pranayama), and meditation (dyana).  There are many different yoga styles, ranging from gentle practices to physically demanding ones. Listen to this in-depth discussion with Renu an Ayuverda specialist based in Rishikesh in northern India on the basic tenets of Yoga.