Laughter and Anger Effects on Heart Health
The question about laughter being "good" and anger being "bad" for the heart cannot be answered from the provided evidence, as none of the guidelines or research studies address psychological or emotional factors affecting cardiovascular outcomes. The evidence exclusively covers structural heart disease (aortic stenosis, stroke volume abnormalities), acute stroke management, and hemodynamic monitoring—none of which examine laughter, anger, or emotional states as interventions or risk factors.
What the Evidence Actually Addresses
The provided materials focus entirely on:
- Aortic stenosis severity classification and management 1
- Low stroke volume index as a prognostic marker in patients with severe aortic stenosis and preserved ejection fraction 2, 3, 4, 5
- Acute stroke care protocols including cardiac complications, dysphagia screening, and fluid management 1
- Hemodynamic monitoring in shock states 6
- Post-procedural fluid management 7
Why This Question Cannot Be Answered
None of the guideline societies represented in this evidence (American Heart Association, American College of Cardiology, European Society of Cardiology, European Association for Cardio-Thoracic Surgery) provide recommendations on emotional states, laughter therapy, or anger management as cardiovascular interventions. 1
The research studies similarly focus on:
- Hemodynamic measurements and mortality prediction 8, 9
- Stroke volume index thresholds in aortic stenosis 3, 4, 5
No studies in the provided evidence examine psychological interventions, emotional states, or behavioral factors affecting heart disease outcomes.
Clinical Context Mismatch
The expanded question mentions "individuals with pre-existing heart conditions and low stroke volume index," but even this specific population is only addressed in the evidence regarding:
- Diagnostic criteria for low-flow aortic stenosis (stroke volume index <35 mL/m²) 1, 2
- Prognostic implications showing increased mortality with lower stroke volume index 2, 3, 4, 5
- Timing of valve replacement interventions 1
There is no intersection between the hemodynamic/structural cardiac disease literature provided and psychosocial factors like laughter or anger.