system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] If Bruce Banner stayed as the Hulk for a very long period of time and reverted back to Banner, would he die?

Let’s say Bruce Banner became the Hulk, and didn’t revert back to Banner until he aged to over 100 years old, way past the normal human lifespan. 

If he reverted back to Banner, would he still be alive or drop dead? And what would happen to the Hulk?
gpt
Yes and no. In Hulk: The End, it starts with Bruce being over 200 years old and wanting to die, but Hulk won't let him. Hulk's healing abilities also works in Banner, but to a lesser degree, allowing him to live much longer than a normal person. But in the end of the book, Banner has a heart attack and dies, leaving the Hulk alone, and cold.