Respiratory symptoms in people with COPD worsen when walking in areas with high levels of black carbon

Physical activity, particularly walking, is a common recommendation for people with chronic obstructive pulmonary disease ...
Nature

Association of low physical activity with higher respiratory tract infections frequency among pre-school children

There is no consensus on the benefits of physical activity (PA) regarding upper respiratory tract infections (URTIs) among children. This study aimed to determine an association between the PA level ...
Nature

Community-level influenza activity modifies the association between ambient air pollution and acute respiratory emergency visits in six U.S. Cities

Parts of the Methods description and analytic framework are based on our previously published work (Huang et al.) 18 We summarize the procedures here and highlight study-specific components below. We ...