Hypnosis isn't just for hucksters and Hollywood villains any more. Clinical trials have demonstrated its effectiveness in treating anxiety, phobias, skin rashes, irritable-bowel syndrome and acute and chronic pain. In North America, medical centres such as the Mayo Clinic have added hypnosis to their pain-management tools. As with mindfulness meditation, hypnosis harnesses the brain's natural abilities to regulate the body and control the random thoughts that ricochet through our minds, says Dr. David Patterson, a University of Washington psychologist. But, he adds, meditation can take weeks or months of practice before it helps patients. With hypnosis, the relief is just a lot quicker and more dramatic." About 10 per cent to 15 per cent of adults are "highly hypnotizable," meaning they can easily slip into a trance and act on hypnotic suggestions. The same percentage of adults do not respond to hypnosis at all, while the rest are somewhere in between. In hypnosis circles, the word "powerful" comes up a lot. But it's hardly an overstatement when you consider the work of Dr. Marie-Elisabeth Faymonville, director of the pain clinic ... at the University Hospital of Lige, Belgium. Hypnosis allows patients to avoid general anesthesia in surgeries ranging from mastectomies to heart-valve replacements, Faymonville says. Since 1992, she has treated more than 9,500 surgery patients with "hypno-sedation," combining hypnosis with small amounts of local anesthesia. Of those patients, just 18 had to switch to general anesthesia.