The concept of earthing has been criticized as pseudoscience by skeptics and the medical community. A review of the available literature on the subject was written by several people that are financially tied to the company espousing the practice of earthing. Steven Novella referred to the work as, "The studies are typical of the kind of worthless studies designed to generate false positives—the kind of in-house studies that companies sometimes use so that they can claim their products are clinically proven."