Overly active, such as the inability to relax or to sit quietly: Hyperactive children are characterized by constant motion-exploring, experimenting, etc. and this condition is usually accompanied by distractions and frustrations.

Some medical specialists suggest that a hyperactive adult might have brain damage and psychosis, but not necessarily.

Rosacea is a painful acne-like skin disorder, characterized by dilated blood vessels and persistent redness of the face.

There is evidence that cathelicidin peptides (which are chemotactic, angiogenic, and bactericidal, and are important for innate immune responses in the skin) are involved in the pathogenesis of rosacea.