Adrenaline and the Hulk

When I was reading the section about adrenaline in chapter 3, I was really intrigued thinking about the fantastic feats people are supposedly able to perform because of adrenaline in a moment of crisis. This got me thinking about superheroes. In particular, the Hulk. In one of the Hulk's origin stories, he starts out as a regular scientist, David Banner, and one day he and his family are in a car accident. David manages to escape the crash unharmed, but his wife and child are trapped under the car. Being a scientist, he's heard of the amazing feats people are sometimes able to perform during an adrenaline rush, and he rushes to their aid and tries to pull the car off them. Sadly, he is unable to help and his family is killed. He is so upset with himself for not being able to save them, that he becomes obsessed with trying to recreate the kind of super-strength that adrenaline rushes sometimes produce. He tests his experiments on himself, and accidentally makes it so that any time he gets even mildly startled or excited, he gets an adrenaline rush so powerful that he can't control himself, thus becoming the Hulk.

Of course, something like this would never actually be possible, because while an adrenaline rush may allow a person to do amazing things, it does so merely by making their body work in the most efficient way possible. It wouldn't cause a person's muscles to increase in size, and I don't see any reason for it to turn a person green. Nevertheless, it's interesting to think about this story with the actual science in mind.