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                       A series of exercises as old as the Sphinx could prove
                      to be the medical miracle of tomorrow - or just wishful
                      thinking from the millions who have embraced yoga in a bit
                      more than a generation. 
                      Yoga can be fun or be made fun of; it can help you look
                      marvellous or feel marvellous. These aspects are not
                      insignificant. They demonstrate the roots yoga has dug
                      into India’s cultural soil—deep enough for open-minded
                      researchers to consider how it might bloom into a therapy
                      to treat or prevent disease. 
                      The sensible practice of yoga does more than give you
                      that blissful look. It can also massage the lymph system.
                      Lymph is the body’s dirty dishwater; a network of
                      lymphatic vessels and storage sacs crisscross over the
                      entire body, in parallel with the blood supply, carrying a
                      fluid composed of infection-fighting white blood cells and
                      the waste products of cellular activity. Exercise in
                      general activates the flow of lymph through the body,
                      speeding up the filtering process; but yoga in particular
                      promotes the draining of the lymph. 
                      Yoga relaxes you and, by relaxing, heals. At least that’s
                      the theory. The autonomic nervous system is divided into
                      the sympathetic system, which is often identified with the
                      fight-or-flight response, and the parasympathetic, which
                      is identified with what’s been called the Relaxation
                      Response. When you do yoga the deep breathing, the
                      stretching, the movements that release muscle tension, the
                      relaxed focus on being present in your body—you initiate
                      a process that turns the fight-or-flight system off and
                      the Relaxation Response on. That has a dramatic effect on
                      the body. The heartbeat slows, respiration decreases,
                      blood pressure decreases. The body seizes this chance to
                      turn on the healing mechanisms.  |