How do you feel pain? It's complicated b involving electrical and chemical messengers as well as psychological and environmental factors unique to you. Here's the scoop.

verb (used with object) 1. to perceive or examine by touch. 2. to have a sensation of (something), other than by sight, hearing, taste, or smell: to feel a toothache.

test ... From MayoClinic.com Special to CNN.com. Jabbing, throbbing, burning, stinging, tingling, nagging or aching ? pain comes in many forms.

Whether animals can feel pain has been a controversial issue for many years. Animals and humans share similar mechanisms of pain detection, have similar areas of ...

Women have twice as many pain receptors as men. ... Women feel more pain than men, studies have shown. New research reveals one reason why.