When Bruce and Betty reunite later in the movie, he reveals to her that maintaining his low heart, non-Hulk heart rate necessitates complete abstinence. Not like Betty doesn’t try to bang him ...

The Hulk is one of the strongest characters in the Marvel Universe, but the thing about him is that he’s not the only ‘Hulk’ ...

Unbeknownst to many, he suffers from a debilitating heart condition ... leading to his involuntary transformation into the Red Hulk during a press conference, leading to the climatic events.