New research says some of us eat more meat than we claim. Find out who.
Quite simply, cognition refers to thinking. There are the obvious applications of conscious reasoning—doing taxes, playing chess, deconstructing Macbeth—but thought takes many subtler forms, such as interpreting sensory input, guiding physical actions, and empathizing with others.
If you've ever told a lie and felt uncomfortable because you see yourself as scrupulously honest, then you've experienced cognitive dissonance. It occurs whenever your view of yourself clashes with your performance in any area—you see yourself as smart but can't believe you made such dumb stock investments.