Mirth-triggered asthma: is laughter really the best medicine?

Area of Science:

• Pediatric Pulmonology
• Psychoneuroimmunology
• Asthma Research

Background:

• Mirthful emotions, including laughter and excitement, are often overlooked triggers for asthma exacerbations.
• Understanding these triggers is crucial for comprehensive asthma management in children.

Purpose of the Study:

• To investigate the prevalence, underlying mechanisms, and clinical associations of mirth-triggered asthma (MTA) in pediatric populations.
• To determine the frequency and characteristics of asthma symptoms induced by laughter or excitement.

Main Methods:

• Conducted a prevalence questionnaire study with 285 children in an emergency department presenting with acute asthma.
• Utilized a cross-sectional study of 541 children with asthma and a laughter diary study involving 21 children.
• Collected data on mirthful stimuli, asthma symptoms, medication use, and peak expiratory flow (PEF) measurements.

Main Results:

• Mirth-triggered asthma (MTA) was identified in 31.9% of the studied cohort.
• MTA was more prevalent in older children and those with indicators of suboptimal asthma control, such as increased salbutamol use, nocturnal/early morning symptoms, and exercise-induced asthma.
• Laughter was a more frequent trigger than excitement, with cough being the predominant symptom, typically manifesting within 2 minutes of the mirthful event.

Conclusions:

• Mirth-triggered asthma (MTA) is a common condition in children.
• The presence of MTA serves as a significant indicator of suboptimal asthma control.
• Further research into the mechanisms and management of MTA is warranted.