Marks Ray, Photobiomodulation, Depression, Anxiety, and Cognition, Journal of Aging Research And Healthcare, Volume 4, Issue 1, 2021, Pages 30-42, ISSN 2474-7785, https://doi.org/10.14302/issn.2474-7785.jarh-21-3935. (https://jndc-chemistryarticles.infojarh/article/1688) Keywords: Aging; Anxiety; Cognition; Depression; Low Level Laser; Low Level Light Therapy; Near Infrared Radiation; Transcranial Photobiomodulation Therapy; Treatment