Why imagine that your hands are warm? As we become more and more relaxed, the blood vessels in our hands relax and expand. That permits more blood to flow into the hands and more blood results in warmer hands. The reverse is also true - as we become tense, our hands become cooler; and blood rushes from the extremities to the center of our bodies. The exercise of visualizing warmer hands seems to be as effective for many people as any relaxation technique.
How to perform the Hands Warming technique. Visualize your hands as warm - relaxed and warm. You might imagine them in a bucket of warm water, near a fire, or in warm fleece-lined gloves.