Anxiety is a normal emotional reaction to stress, but when it reaches overwhelming levels, it can cause physical symptoms that feel threatening, and one among them is hyperventilation.

The body has a set of physiological responses to danger: the pupils dilate, respiration deepens, heart rate and blood pressure rise, muscles tense for action. The gastro-intestinal system reacts also.

A fascinating new proof-of-concept study is proposing a novel, cheap and surprisingly simple way to rapidly reduce blood alcohol levels. The research suggests a low-tech device aiding safe ...