|Trigger:||This ability has no trigger, it is constantly active.|
|Effect:||Exert oneself for long periods of time without tiring.|
Superhuman stamina represents an individual's ability to maintain continuous strenuous physical action for an extended period of time without tiring or undue strain.
Being injected with genetically-engineered animal DNA is the only known way in which a person can come to have the human-animal physiology required to develop this ability.
The bearer's body is immune or highly resistant to the buildup of fatigue toxins in their blood, allowing them to be physically active for longer periods of time than an average human being. However, they can only exert themselves for so long before the excessive build-up of fatigue begins to wear them down.
Vincent emerges out of a heavy exercise session untired. ("Trapped")
- Vanessa: "After that last session you don't feel any fatigue."
- Vincent: "No."
- — Vanessa questioning Vincent.[src]
Vincent can exercise for extended periods of time without getting tired or straining himself. During one of her observation rounds in 2003, Vanessa Chandler ask Vincent if he felt any fatigue after a grueling exercise session, which involved lifting weights. To which he responded "no". His increased stamina also allows him to use his super speed with little effort.