Yoga is an ancient and complex practice,
rooted in Indian philosophy. It began as a spiritual practice but has
become popular as a way of promoting physical and mental well-being.
Although classical yoga also includes other elements, yoga as practiced
in many countries 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. Differences in the types of yoga used in
research studies may affect study results. This makes it challenging to
evaluate research on the health effects of yoga.