If findings from a mouse study can be replicated in human trials, light-emitting diodes may prove to be an effective method for increasing gastrointestinal transit and treating motility disorders. Researchers in the United States and Australia have shown that LEDs that emit blue light can stimulate colonic contractions and propel feces through the GI tract.
“This is fascinating stuff,” said William Chey, MD, professor of medicine, director of the GI Physiology Laboratory and