Fiat Lux: The Light Became Therapy. An Overview on the Bright Light Therapy in Alzheimer’s Disease Sleep Disorders

Fifteen studies indicate that bright light therapy (BLT) may serve as a promising non-pharmacological intervention for circadian rhythm alterations in Alzheimer's disease.

• Bright light therapy is associated with improvements in sleep disorders and sleep-wake patterns in individuals with Alzheimer's disease.
• Circadian rhythm disruptions can occur in aging and Alzheimer's disease, leading to misalignment with environmental light cues.
• Standardized protocols for bright light therapy could facilitate better comparisons between multicenter studies.
• The COVID-19 pandemic has limited sunlight exposure for people with Alzheimer's disease, potentially worsening circadian disturbances.
• Bright light therapy may help mitigate exacerbated circadian disturbances in this population.

AI simplified