Sometimes called "enhanced stamina", Superhuman Stamina is a term used to describe the ability of some characters to function without tiring or undue strain. Characters who possess this power can often go for long periods of time without rest or even sleep. An individual may develop enhanced stamina either through alien heritage, genetic manipulation or biological augmentation. Other characters may develop enhanced stamina through mystical means, or through divine intervention.
This is not to be confused with Superhuman Endurance which is the ability for characters to sustain activity for a long period of time.