Revolved head-to-knee pose is considered very beneficial for the body in a number of ways. It provides a powerful stretch for the hamstrings, back and shoulders, and deeply works each side of the body.
The twisting element of the posture helps stimulate the liver, kidneys and abdominal organs, improving digestion. It can also help to relieve mild backache.
Revolved head-to-knee pose can be practiced sitting on the edge of a folded blanket to lift the sit bones slightly, and should only be practiced to the point of a comfortable stretch. Usually this posture is included in the second half of a yoga class once the muscles are limber to allow a deeper stretch. It should be practiced with caution by those suffering with any kind of knee, hip, back or shoulder injury.