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CME: Light Therapy: Why, What, for Whom, How, and When (And a Postscript about Darkness)
Anna Wirz-Justice1, And Michael Terman2
1Centre for Chronobiology, Transfaculty Research Platform, Molecular and Cognitive Neurosciences, Psychiatric Clinics, University of Basel, Basel, Switzerland.
Praxis
|February 2, 2022
Summary
Light therapy is an effective treatment for Seasonal Affective Disorder and can improve mood and sleep in other conditions. Guidelines recommend specific light dose, spectrum, duration, and timing for optimal results.
Area of Science:
- Chronobiology
- Psychiatry
- Neuroscience
Background:
- Light therapy is an established treatment for Seasonal Affective Disorder (SAD).
- Light influences circadian rhythms, affecting sleep, mood, alertness, and cognition.
- Guidelines exist for light therapy in SAD, alone or with other treatments.
Purpose of the Study:
- To review evidence-based light therapy protocols for SAD.
- To explore adjunct light therapy for broader psychiatric, neurologic, and medical conditions.
- To specify criteria for selecting light treatment devices and optimizing therapy.
Main Methods:
- Review of 40 years of clinical trials and open treatment data.
- Specification of treatment parameters: dose (10,000 lux), spectrum (white light), duration (30-60 min), and timing (early morning).
- Emphasis on patient selection and monitoring for efficacy and side effects.
Main Results:
- Light therapy is effective for SAD and can benefit mood and sleep disturbances in other illnesses.
- Optimal treatment involves 10,000 lux white light for 30-60 minutes in the early morning.
- Protocol adjustments and monitoring are crucial for managing side effects and maximizing improvement.
Conclusions:
- Light therapy is a versatile, evidence-based treatment for circadian rhythm and mood disorders.
- Standardized protocols ensure safe and effective light therapy administration.
- Continued monitoring is essential for personalized treatment adjustment.
Keywords:
LichttherapieLight therapyMajor DepressionSADSchlafstörungenbipolar disorderbipolare Störungmajor depressionsleep disordersMore Related Videos
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