Light therapy is a treatment that uses specific wavelengths of light to improve health and well-being. It is commonly used to treat conditions like seasonal affective disorder (SAD), sleep disorders, and certain skin issues. The therapy typically involves sitting near a light box that emits bright light, mimicking natural sunlight, which can help regulate mood and circadian rhythms. During a light therapy session, individuals usually spend about 20 to 30 minutes in front of the light source each day. This exposure can help increase serotonin levels, improve sleep quality, and reduce symptoms of depression. It is considered a safe and non-invasive treatment option for many people.