"The use of light as therapy is exemplified by its use in the San Sydney Adventist Hospital in Sydney Australia, where light therapy was introduced in 1903 (after Dr. John Harvey Kellogg visited Niels Finsen in Denmark) and is practiced by nurses, physiotherapists, and doctors until the present day," notes a narrative review published in Physiotherapy Theory and Practice in 2021. The discovery of lasers in the 1960s represented a new way to use light to promote healing. A report published in the Annals of Biomedical Engineering in 2012 states that red low-level laser light is used predominantly in three ways, "to reduce inflammation, edema, and chronic joint disorders; to promote healing of wounds, deeper tissues, and nerves; and to treat neurological disorders and pain."