A reflex is an automatic body movement that happens involuntarily in response to a stimulus. Healthcare providers sometimes test a person's reflexes as part of a routine or diagnostic exam. Overactive ...

The gastrocolic reflex is a physiological reflex that stimulates movement in your lower gastrointestinal (GI) tract after eating. It isn’t a disease or medical condition, but rather a normal response ...

Elina Svitolina's quick reflexes were on show during her Australian Open quarterfinal against Madison Keys. Early in the second set, the Ukrainian managed to track down a Keys drop shot, but Keys ...

Normally, sympathetic and parasympathetic nerves act synergistically and together create the state of equilibrium known ... it engages the so-called diving reflex. The cold stimulates the vagus ...