Health Information Library

Feeling sad and unhappy about being socially isolated.

A persistent, unpleasant odor in exhaled breath, usually not serious, commonly called bad breath.

Involuntary shaking or movement, ranging from slight to severe, and commonly affecting hands, legs, face, head, or vocal cords.

Tiny round brown-purple spots due to bleeding under the skin, may be in a small area due to minor trauma or widespread due to blood-clotting disorder.

A belief or altered reality that is persistently held despite evidence or agreement to the contrary, generally in reference to a mental disorder.

Uncontrolled, involuntary muscle movement.

The enlargement of an organ.

Damage to a nerve.

The persistent feeling of observing oneself from outside one’s body or having a sense that one’s surroundings aren't real.

Blood or bleeding under the skin due to trauma of any kind; typically black and blue at first, with color changes as healing progresses.

Slowed or reduced muscle movement.

Physical discomfort in the jaw.

A type of behavior intending to cause physical or mental harm.

Inflamed, irritated gums that bleed easily.

Frightening dreams, usually during REM sleep, that are normal and common in children under 10 and can also affect teens and adults.

Feeling indifferent or lacking emotion, often a sign of depression or misuse of alcohol or drugs.

The state of feeling disinterested in one's surroundings, having nothing to do, or feeling that life is dull.

Thoughts, urges, or behaviors that persist despite negatively affecting health, job, or relationships.

Episodes of screaming, intense fear, and flailing while still asleep, often paired with sleepwalking.

A potentially serious sleep disorder in which breathing repeatedly stops and starts.