Wolverine is a mutant with a number of both natural and artificial improvements to his physiology. His primary mutant power is an accelerated healing process, typically referred to as his mutant healing factor, that regenerates damaged or destroyed tissues of his body far beyond the capabilities of an ordinary human. This power facilitated the artificial improvements he was subjected to under the Weapon X program (in later comics called the Weapon Plus program), in which his skeleton was reinforced with the virtually indestructible metal adamantium.
Depictions of the speed and extent of injury to which Wolverine can heal vary. Originally, this was portrayed as accelerated healing of minor wounds,[31] but writers have steadily increased this ability over the years. After several years, Wolverine's healing factor was depicted as healing severe wounds within a matter of days or hours.[32][33] Other writers went on to increase Wolverine's healing factor to the point that it could fully regenerate nearly any damaged or destroyed bodily tissues within seconds.[34][35][36] Among the more extreme depictions of Wolverine's healing factor include fully healing after being caught near the center of an atomic explosion[37] and the total regeneration of his soft body tissue, within a matter of minutes, after having it incinerated from his skeleton.[38] It has been stated in the Xavier Protocols, a series of profiles created by Xavier that lists the strengths and weaknesses of the X-Men, that Wolverine's healing factor is increased to "incredible levels" and theorizes that the only way to stop him is to decapitate him and remove his head from the vicinity of his body.[39] It's possible for the efficiency of his healing powers to be suppressed. For example, if an object composed of carbonadium is inserted and remains lodged within his body, his healing powers are slowed dramatically though they are not fully suppressed.[40] His healing factor can also be greatly suppressed by the Muramasa blade, a katana of mystic origins that can inflict wounds that nullify superhuman healing factors.[41] His healing factor also dramatically slows his aging process, allowing him to live beyond the normal lifespan of a human. Despite being born in the late 19th century,[42] he has the appearance and vitality of a man in his physical prime. It is unknown exactly how greatly his healing factor extends his life expectancy. Though he now has all of his memories, his healing abilities can provide increased recovery from psychological trauma by suppressing memories in which he experiences profound distress.[43] In addition to accelerated healing of physical traumas, Wolverine's healing factor makes him extraordinarily resistant to diseases, drugs, and toxins. However, he can still suffer the immediate effects of such substances in massive quantities; he has been shown to become intoxicated after significant dosages of alcoholic beverages,[44] and has been incapacitated on several occasions with large amounts of powerful drugs and poisons.[45]
Although his body heals, the healing factor does not suppress the pain he endures while injured.[46] He does not enjoy being hurt and sometimes has to work himself up for situations where extreme pain is certain.[47][48] Wolverine, on occasion, has deliberately injured himself or allowed himself to be injured for varying reasons, including freeing himself from capture,[49] intimidation,[50] strategy,[51] or simply indulging his feral nature.[52][53][54]
From wikipedia 😉