METHODS FOR TREATING DISORDERS AND FOR STIMULATING STEM CELLS BY ADMINISTERING LIGHT THERAPY

The disclosure relates generally to methods for treating or slowing progression of a tumor, a neurodegenerative disease or a cognitive impairment, and for improving cognition, comprising administration of light therapy. The disclosure also relates to methods for activating oral stem cells, comprising administration of light therapy. Further provided herein are methods for improving cognition, comprising administering to the oral cavity of a subject in need thereof an effective amount of light. Additionally provided herein are methods for treating autism or Asperger's syndrome, comprising administering to the oral cavity of a subject in need thereof an effective amount of light.