Can Lucid Dreaming Affect Physical Healing?
Answering this question will require some serious, unbiased research. I am of the opinion that yes, improving physical health could possibly be achieved through lucid dream therapy.
Being happy, all by itself, can and has been shown to promote good health. There is the old saying "laughter is the best medicine." Stress and worry definitely seem to tear away at well-being. Along these lines, if you have entered the point on a shroom-trip where you laugh uncontrollably for 15-minutes or so, I would suggest that this experience is the greatest medicine out there (although achieving this state is not fully unpredictable).
Athletes know that visual imagery can be an important part of training. Rehearsing an event, including its outcome, even mentally, has been shown to improve physical performance. All sorts of diseases can be mitigated by incubating a positive outlook (this isn't to say that diet and overall lifestyle shouldn't all be integrated together. They should.).
Now consider that in dreams our mental rehearsal can be much more vivid and realistic than while awake and closing our eyes. Actually, especially in lucid dreams, our experience can be "realer than real." A paradox for sure, but many of you know what I mean. AND, emotions run high in dreams, so if you can direct a lucid dream along the lines of some sort of healing pursuit, perhaps the mind can trigger the body to release the right chemicals and open the right pathways to aid in a healing process.
For example, one of my lucid goals was to create basketball-size energy balls that would empower my body to handle a health issue I had at the time. It took several lucid dreams to successfully create an energy ball, but eventually I did. I don't really know if these dreams helped, but my situation improved afterward. I like to think that on some level there was a connection.
I would love to hear about your experiences with healing in dreams (lucid or otherwise).