Superhuman Stamina: The Hulk's body counteracts fatigue poisons that build up in his muscles during physical activity. In an enraged state, he is capable of exerting himself at peak physical capacity for several days before fatigue begins to affect him. However, much like his physical strength, the Hulk's stamina does increase as he becomes angrier[190].
Superhuman Durability: In addition to great strength, the Hulk's body possesses a high degree of resistance to injury. The Hulk's skin is impervious to conventional blades, adamantium and vibranium being amongst the very few metals that are truly capable of piercing his skin. The Hulk is capable of withstanding high caliber bullets, powerful explosives, pressures extremes, falls from orbital heights [191][192], maximized heat without blistering, maximized cold without freezing, and great impacts. The Hulk has withstood the impact of a ground zero nuclear explosion [72][193][194][98][195][196] and also the Human Torch's Nova Blast [197][187], with a temperature of one million degrees Fahrenheit, without any injury. The Hulk was also able to withstand a planet-devastating impact near of the event[198], a planet-shattering impact at point blank range[179], and a mighty blast from Galactus[199]. The Hulk's durability, like his strength, is fueled by rushes of adrenaline while angry[190].
Regenerative Healing Factor: Despite his high resistance to physical harm, it is possible to cause the Hulk injury. However, he is capable of regenerating damaged or destroyed areas of his body with far greater speed and efficiency than an ordinary human. For example, during a battle with Vector all of the skin and much of the muscle mass of the Hulk were damnified. It took the Hulk moments to regain the mass and be completely healed[200]. The Hulk's healing factor also enables him to revert any physical transmutation[201][202][203][204][188]. Hulk also heals faster and more efficiently the madder he gets[190].
Immortality: For all intents and purposes the Hulk is immortal. Because of his healing factor that regenerates his cells, and the gamma energy and the dark magic he has absorbed that empowers him, the Hulk is immortal. A possible future persona, the Maestro, was in physical prime in spite of being more than one hundred years old [205]. In another alternate future it is implied that the Hulk's body effectively lasts forever [206].