text: Dyspnea is a prevalent symptom with consequences that 
  extend beyond its physiologic implications. A study in 
  European patients with COPD explored the burden of 
  dyspnea and identiﬁed potential correlates. The study 
  revealed that higher dyspnea impact correlated with 
  lower health-related quality of life, increased work 
  impairment, and a higher frequency of emergency 
  department visits.7 
  
  Dyspnea refers to a subjective sensation of breathing 
  discomfort.1 In a study involving a community-based 
  population aged > 70 years, the prevalence of dyspnea 
  was found to be 32%.2 Dyspnea can lead to limitations in 
  daily activities, reduced exercise tolerance, and 
  heightened mortality risks.3 
  
  The three objectives of our study were as follows: (1) to 
  evaluate the impact of dyspnea in adults from the 
  general population who had no prior diagnosis of 
  respiratory disease but who reported having signiﬁcant 
  respiratory symptoms in the past 6 months; (2) to 
  identify associated risk factors for dyspnea and estimate 
  their inﬂuence on the symptom; and (3) to explore the 
  relationship between dyspnea and health care utilization, 
  quality of life, and work productivity in adults with 
  undiagnosed respiratory symptoms. 