In terms of environmental factors, studies show that cold weather and accompanying low air humidity negatively affect the respiratory epithelium, inducing hyperresponsiveness and narrowing of the respiratory airway.2
A study by Hyrkas-Palmu et al, shows that winter AR results in significant functional disability (FD), affecting both physical and cognitive performance, as well as exacerbate health (EH) problems in individuals living with AR. Winter AR leads to FD in 25.1% and EH in 19.2% of individuals living...
