Definition of "hyperactive"

Salarians are noted for their high-speed metabolism, which allows them to function on just one hour of sleep a day. Their minds and bodies work faster than most sapient races, making them seem restless or hyperactive. The drawback of this active metabolism is a short lifespan of around 40 human years.

2008, BioWare, Mass Effect, Redwood City: Electronic Arts, PC, scene: Salarians: Biology Codex entry