The five senses are familiar to us: sight, sound, taste, touch, and smell. Amelia Chapman says we should add two more to the ...

Aditi Garg: Place your left hand on the abdomen, your right hand on the chest. Sit comfortably. And then as we breathe in, we ...

The sympathetic nervous system was thought to have evolved with jawed vertebrates. But lampreys—jawless, parasitic fish that suck out the blood of their hosts—have a simple one, per recent research.

Long after a traumatic event has passed, a person’s nervous system can be reactivated whenever they perceive danger, whether or not danger is present. This feeling of heightened arousal is like being ...