Studies

Seasonal affective disorder: A description of the syndrome and preliminary findings with light therapy

The landmark study that first described Seasonal Affective Disorder and demonstrated that bright light therapy could effectively treat winter depression.

Rosenthal NE (1984)

The efficacy of light therapy in the treatment of mood disorders: a review and meta-analysis of the evidence

Meta-analysis of RCTs confirms bright light therapy is an effective treatment for SAD with effect sizes comparable to antidepressant medications.

Golden RN (2005)

Efficacy of bright light treatment, fluoxetine, and the combination in patients with nonseasonal major depressive disorder

Light therapy is effective for non-seasonal major depression, with combination of light plus fluoxetine showing superior results to medication alone.

Lam RW (2016)

Narrowband ultraviolet B treatment improves vitamin D balance and alters antimicrobial peptide expression in skin lesions of psoriasis and atopic dermatitis

Narrowband UVB phototherapy significantly increases vitamin D levels as a beneficial side effect in patients receiving treatment for skin conditions.

Vähävihu K (2011)

Narrowband ultraviolet B three times per week is more effective in treating vitamin D deficiency than 1600 IU oral vitamin D3 per day: a randomized clinical trial

UVB exposure effectively raises vitamin D levels and produces a broader spectrum of vitamin D metabolites compared to oral supplementation.

Bogh MKB (2013)

Influence of narrowband UVB phototherapy on vitamin D and folate status

Home UVB devices effectively increase vitamin D levels with proper dosing protocols, offering a practical alternative to sun exposure in vitamin D-deficient populations.

Cicarma E (2011)

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