Circadian Rhythm Disorder
Prevalence: 0.13-0.17% delayed sleep phase; higher in adolescents
Evidence-Ranked Ingredients
About
Misalignment between internal circadian clock and desired sleep-wake schedule. Includes delayed sleep phase, advanced sleep phase, and non-24-hour types.
Common Symptoms
Inability to sleep at desired time
Excessive sleepiness
Social/work impairment
Risk Factors
- Genetics
- Age
- Light exposure patterns
- Shift work
Frequently Asked Questions
What supplements may help with Circadian Rhythm Disorder?
Based on peer-reviewed research, supplements with the strongest evidence for Circadian Rhythm Disorder include Melatonin. These have earned Grade A or B ratings from our analysis of clinical studies. Always consult your healthcare provider before starting any supplement.
How is the evidence for Circadian Rhythm Disorder supplements graded?
We grade supplements on an A-F scale based on clinical study quality, consistency of results, sample sizes, and study design. Grade A indicates strong evidence from multiple clinical trials, while Grade D indicates preliminary evidence requiring further research.
How many studies on Circadian Rhythm Disorder supplements have been reviewed?
Our evidence grades for Circadian Rhythm Disorder are based on a total of 52 peer-reviewed studies across 1 ingredients. Studies are sourced from PubMed and include randomized controlled trials, meta-analyses, and other clinical research.
What are common symptoms of Circadian Rhythm Disorder?
Common symptoms associated with Circadian Rhythm Disorder include Inability to sleep at desired time, Excessive sleepiness, Social/work impairment. If you are experiencing these symptoms, consult a healthcare professional for proper diagnosis and treatment options.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.