When I tell guests on my boat that dolphins never completely sleep, they are astounded. But in truth, if dolphins fell completely asleep as humans do, they would drown. They have to surface to breathe ...

The default mode network (DMN) is a set of interconnected brain regions known to be most active when humans are awake but not ...

Take a look around your home and you'll find yourself surrounded by familiar comforts—photos of family and friends on the ...