Having a word “on the tip of the tongue” has happened to all of us. Behind this everyday phenomenon lie complex brain mechanisms.

One of the first clinical skills learned by medical students is the importance of asking the patient to "put out your tongue, please," recognizing that observing the tongue may frequently provide ...

The integumentary system is the body’s outermost layer. Composed of skin, hair, nails, glands, and nerves, its main job is to protect your insides from elements in your environment, like pollution and ...