What behavior of Ellie’s makes Debbie worried?

W: I’m a bit worried about Ellie. She’s nearly six and she still sucks her thumb!
M: Oh, Debbie, you needn’t worry too much about her. I’ve got a friend who has sucked her thumb for twenty-nine years’
W: You’re kidding!
M: No, honestly. She only does it when she’s really tired, but you can imagine how strange it looks on a grown woman.

W: Paul, you don’t look very happy. What’s wrong?
M: Well I went to the doctor for my annual medical check-up last Sunday, and he said that I had to make some lifestyle changes, or else I may have some health problems.
W: What did the doctor tell you?
M: He told me that I should change my diet and that I had to get more exercises. If I don’t, he said, I might develop some serious problems.