From Publishers Weekly Starred Review. Western-trained internist and Yoga Journal medical editor McCall has practiced Iyengar yoga for a decade. In 2002, he traveled to India, where most scientific research on yoga’s medical benefits has been conducted. The results of that visit and...

Heart changes during yoga session consistent with isometric exercises.   Given yoga’s mix of strengthening, flexibility, movement, and breathing exercises, you’d be right to think it affects many of the body’s systems. In terms of cardiac effects, a single yoga...