answer: #Person2# tells #Person1# #Person2#'s been making lifestyle changes including quitting smoking and starting exercising, so #Person2# looks healthy.
documents: #Person1#: You are looking really healthy lately. What are you doing differently?
  #Person2#: Thank you for noticing! I've been making a few lifestyle changes over the past year.
  #Person1#: Tell me about it. I'm interested.
  #Person2#: Well, it all started when my brother challenged me to quit smoking.
  #Person1#: Ha! That's right. You used to smoke. I forgot!
  #Person2#: When I kicked that habit, I found I had so much more energy. I started exercising.
  #Person1#: At the gym?
  #Person2#: No. I like to be outside. I took up hiking and mountain biking.