A man convicted of killing three people in workplace shootings has been executed with nitrogen gas in Alabama. It was the ...

Alabama is preparing to carry out the nation’s second nitrogen gas execution. Alan Eugene Miller is scheduled to be executed Thursday with nitrogen gas at a south Alabama prison. The ...

Background Widespread use of respiratory protection masks has become a critical component of public health response.

Would you do an exercise test to see how fit you are? When I was given the chance to see how well my heart and lungs work ...

When I was given the chance to see how well my heart and lungs work during a period of 'maximum exertion', I was a little ...

When Andrew Cleminshaw attended a conference in 2014, he never thought he would meet his future wife, Ashley. The two were introduced at a conference on cluster headaches organized by ...