India, June 21 -- There are elements of art, science, and philosophy in yoga - and the science of it, like science elsewhere, necessitates precision and logic. On the International Day of Yoga, it is therefore important to reassert the integrity of yoga's science and underline the costs of overlooking it.

The human body is bilaterally symmetrical. This means that our bodies possess a precise alignment, and any disturbance to that alignment can lead to health issues of varying degrees of severity. In the Iyengar school of yoga, the emphasis is on maintaining and supporting the precision of this alignment, while adapting it to an individual's ailments and physical conditions.

However, if one examines prevailing trends in yoga teaching and...