Does exposure to traffic and air pollution reduce heart rate variability in patients hospitalized for coronary artery disease?
Exposure to traffic and particulate pollution is associated with decreased heart rate variability in patients with recent hospitalization for coronary artery disease.
After hospitalization for coronary artery disease, both particulate pollution and being in traffic, a marker of stress and pollution, were associated with decreased HRV.
Zanobetti et al. (2009) studied this question.