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A Mr. Incredible Becoming Uncanny meme.
Smiling Mr. Incredible: Lazarus syndrome
Uncanny Mr. Incredible: Lazarus sign (CW: shows a thumbnail of a brain-dead person right when you open the article)
Other than all of the medical equipment hooked up to his body. At the very least it's a young person who appears to be dead or dying. It can be a triggering picture, hence the request for a heads up to potential viewers.
OP didn't have to do it, out of respect they did tag it. Just because you don't find the image disturbing doesn't mean other won't .