Some doctors watched President Biden's speech and talked about how he seemed a little sad and not very excited.
They said he didn't seem to be very happy even though it was a big day, and that he didn't really seem to believe what he was saying.
They also noticed that he sometimes stumbled over his words and used a teleprompter to help him speak.
But other doctors said that maybe the way he was speaking was because of how he had to give the speech.
