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

WE all have “problem areas” when it comes to our bodies, and for many of us, this is our middles. Whether we’ve got a beer ...

Researchers have discovered a fundamental mechanism that affects the size of the pupil, namely our breathing. The study shows that the pupil is smallest during inhalation and largest during exhalation ...

Researchers have discovered that breathing affects pupil size, with the pupil being smallest during inhalation and largest ...

If headlines of recent plane crashes and close calls have you worried about air travel, you're not alone. Here are some things you can do to help ease anxiety about flying.

It was previously believed that our pupil size was only affected by three things: light, focusing on nearby objects and ...

If it feels too easy, it probably is — get better results when you change this setting on your elliptical machine.