Nathan Congleton/NBC
- Michelle Obama says that one of the last conversations she had with her mom gave her a new outlook on growing older.
- The former first lady added that being in her 60s has made her more "mindful" of how she spends her time.
- "If I'm lucky, I live to 90 and that's 30 good summers," she said.
Michelle Obama says that one of the last conversations she had with her mother



