Note: Laughter is not a dietary supplement. This page summarizes research on laughter as an intervention studied in clinical trials. Evidence grades reflect study quality, not a recommendation.
Laughter
Laughter is a physical reaction characterized by a distinct repetitive vocal sound, certain facial expressions, and contraction of various muscle groups. Some research suggests laughter, when even self-induced or simulated, may provide psychological and physiological benefits.
Quick Answer
What it is
Laughter is a physical reaction characterized by a distinct repetitive vocal sound, certain facial expressions, and contraction of various muscle groups. Some research suggests laughter, when even self-induced or simulated, may provide psychological and physiological benefits.
Key findings
- Grade A: Depression Symptoms (Breast Cancer)
- Grade A: Anxiety Symptoms (Breast Cancer)
- Grade N/A: Stress Signs and Symptoms (Breast Cancer)
Safety
No specific caution or interaction language was detected in the current summary/outcome notes.
ℹ️ Quick Facts: Laughter
Quick Facts: Laughter
- Best Evidence:Grade A
- Conditions Studied:5
- Research Outcomes:15
- Grade A Findings:6
- Key Effect:Breast Cancer
Detailed Outcomes
Evidence by Condition
Best grade per condition (each condition may have multiple outcomes)
Research Citations (1)
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