Reflexology areas on the foot correspond to areas of the body, and that by manipulating these one can improve health through one's qi. Reflexologists divide the body into ten equal vertical zones, five on the right and five on the left. Concerns have been raised by medical professionals that treating potentially serious illnesses with reflexology, which has no proven efficacy, could delay the seeking of appropriate medical treatment. Reflexologists posit that the blockage of an energy field, invisible life force, or Qi, can prevent healing. Another tenet of reflexology is the belief that practitioners can relieve stress and pain in other
Nature therapy or forest bathing. Anthropologically, nature therapy appears to have existed since the dawn of time in many cultures and tribes. "Shinrin-yoku" () literally means forest bathing, originated in Japan in the early 1980s and may be regarded as a form of nature therapy. In Japan, Shinrin-yoku has become established across all prefectures with more than 60 Forest Therapy Camps by the end of 2016. In the late 1990s a pseudoscientific variant called earthing or grounding started to be marketed, under the notion that the earth functions as an electrical ground for people and that touching the earth provides an array