How we communicate via today's modern technologies may be more important than ever, but do old theories of mass communication still apply? The four functions of mass communications are: surveillance, ...

Background The relationship of social determinants of health (SDOH), environmental exposures and medical history to lung function trajectories is underexplored. A better understanding of these ...

Trusted, comprehensive information and resources for heart health. Chest pain isn’t always a heart attack, but it’s safer not to guess. Know when symptoms mean it’s time to get help. It's not just ...