Other than the obvious physical change where the Hulk turns green, he can feel the other physical changes in his body. He gets hot, sweaty, starts to breathe shallow and rapidly and he is not able to gather his thoughts (racing thoughts). How to talk to your child: “When the Hulk turns green, he is obviously angry.
In the 2008 movie The Incredible Hulk, Banner is first shown to be attempting to control his rage with a varying range of meditation and breathing practices, which are also used in real life, says Decker: "Slow, deep breathing to slow down your heart rate and to work through your emotions, that is 100 percent true."
The angrier Hulk gets, his mass increases in size in order to accommodate the increased strength. As Hulk becomes more powerful as anger increases, his strength continues to rise further and further. His rising anger allows him to literally beat his own power being used on him. Stated in official material as well.
In Incredible Hulk #2, the Hulk started to appear with green skin, and in Avengers #3 (1963) Banner realized that his transformations were now triggered by surges of adrenaline in response to feelings of fear, pain or anger.
In this story (by Stan Lee, Dick Ayers and Paul Reinman), the Hulk finally explains why he gets stronger as the fight goes on, because his strength is tied to his anger... And it's been that way ever since (well, I mean, you know, lots and lots of exceptions to that idea, but for the MOST part it still holds true).
I'm always angry," from the Avengers (2012) movie is as an assertion that Bruce Banner always bears his rage from being cursed to live as the Hulk. It's a cool line - a cathartic statement about who Banner is a character.
The Avengers found that a certain lullaby, typically said by the Black Widow, was able to calm the Hulk and help him revert back to Banner, when the Hulk's strength was no longer needed.
In Avengers: Age of Ultron, Banner's love interest Black Widow (Scarlett Johansson) used a lullaby - "Hey big guy, the sun's getting real low..." - to calm Hulk's rage and ease him back into Banner, which Thor hilariously tried to use on both Hulk and Banner in Thor: Ragnarok.
Bipolar Disorder (extreme mood swings, even without the Hulk, and the fact that he was constantly holed up in his lab before Hulk, which could represent manic episodes) Social Anxiety (his extreme fear of crowds displayed in Ragnarok, as well as his reluctance to get close to people)
He mentions that, supposedly, years of gamma exposure had negative effects on his psyche, causing him to become progressively more and more villainous.
With the introduction of Smart Hulk in Endgame, it seems like anger is no longer a factor in the Hulk's journey in the MCU. As he explained in the movie, he "put the brain and the brawn together." And in a strange way, it's a shame that the Hulk may never be able to go back to his iconic, angry self.
However, part of what allows Hulk to be forgiven for the massive destruction he causes is the shockingly small death toll of his frequent rampages. In fact, according to Marvel lore, Hulk has never directly killed an innocent, whether battling the military or tearing down Avengers tower.
Eventually, this aspect of the character was dropped and the savage green Hulk simply grew stronger as his rage increased. This allowed the Hulk to get mad enough to perform amazing feats of strength – like smash asteroids or swim across an entire ocean.
There have been criticisms about how the MCU has nerfed the Hulk, especially since he became more humorous as a character in the process. However, this change in power levels can be traced back to being Smart Hulk since Avengers: Endgame, meaning Banner has had a better handle on his emotions for quite some time.
In fact, the Hulk can lift in excess of one hundred tons at the peak of his rage, as Marvel has indicated in several of their handbooks. However, the Hulk can only bench significantly lower amounts - between seventy or ninety tons depending on his personality - while in his regular mindset.
In the second issue, though, Hulk shouts out "Hulk smashes!" as a distinct sentence, so that could be our answer, but later in the issue, he does it again with just "Hulk smash!" And that, therefore, is the first appearance of "Hulk smash!" in a comic book.
Given that the Hulk is essentially the anger Bruce feels attaining a massive form, it's clear to see that how angry he gets directly correlates to how destructive he can be. However, there's more to it that makes the Hulk's horrifying rage even scarier than fans may expect.
Hulk's line "Puny God" proves that in his green eyes, gods aren't much different from humans, as he thrashes Loki in the first Avengers film. Banner's line, "I'm always angry," reveals his ability to turn into the Hulk whenever he chooses, shedding light on his constant need to manage his anger.
