A car backfires, and your shoulders jump. A shadow moves, and your eyes fly open before your brain catches up. That dramatic flash of white sclera around widened eyes feels automatic because it is.

Babies are born with different reflexes that help them survive the first months of life. Reflexes are involuntary actions that arise in response to certain stimuli. The extrusion or tongue-thrust ...

Reflexes are automatic and involuntary actions the body produces in response to certain stimuli. While some reflexes can involve muscles and movement, others involve internal processes within the body ...