Total Health Physio now offers Yin yoga every other Saturday morning. Yin Yoga is based on the Taoist concept of yin and yang, opposite and complementary principles in nature. Yin is the stable, un-moving, hidden aspect of things; yang is the changing, moving, revealing aspect. The class consists of a series of long-held, passive floor poses that mainly work the lower part of the body—the hips, pelvis, inner thighs, lower spine. These areas are especially rich in connective tissues. The poses are held for up to five minutes, sometimes longer.