History
At some point in time Banner and Hulk were separated into two different entities and Banner managed to kill the Hulk; since that time Banner managed to lead a happy life with his wife Betty and their two children Skip and Laurie. Banner was also a member of the Founders (Mr. Fantastic, T'Challa, Hank Pym, Dr. Doom, Hank McCoy) that progressively uploaded intelligence into Mental Organism Designed Only for Knowledge; as a result, each became dumber over time.[1]