Researchers at Karolinska Institutet in Sweden have discovered a fundamental mechanism that affects the size of the pupil, ...

For more than a century, scientists have understood that three factors control pupil size: light, focus distance, and ...

Anxiety is a common response in high-stress situations such as sports competitions. Elite athletes have developed various ...

Researchers at Karolinska Institutet in Sweden have discovered a fundamental mechanism that affects the size of the pupil, namely our breathing.

Bobbi Conner talks with MUSC's Dr. Sundar Balasubramanian about research exploring the benefits of yogic breathing exercises.