Bright White Light Therapy

**Semantic type:** Therapeutic or Preventive Procedure

**Definition:** Phototherapy that utilizes bright white full-spectrum light, typically delivered through a light box, to mimic natural outdoor light for the treatment of the depressive symptoms in both seasonal affective disorder and non-seasonal depression, as well as for the treatment of sleep and other mood disorders.

**Synonyms:** - BWL - Bright Light Therapy - Bright White Light