Kyle Busch died after severe pneumonia progressed into sepsis, his family says

[Wednesdays]

5. Stephen Colbert was an hour from death

...when his appendix burst in November 2023. He was in severe pain, but went ahead with the taping of that evening's show. It wasn't until after the show that his wife dragged him to the ER. Another hour later, he would have been dead.

I remember watching that episode, not realizing how ill he was.