answer: Mike started exercising to improve his health. #Person1# and Mike point out eating better and sleep well are important too.
documents: #Person1#: Hi Mike. What have you been up to?
  #Person2#: Not much. I started exercising.
  #Person1#: Trying to get in shape?
  #Person2#: Yeah, and I need to start improving my health.
  #Person1#: Me too. What are you doing besides exercising?
  #Person2#: That's about all.
  #Person1#: I think if you eat better, it will help tremendously.
  #Person2#: Sleep is good too. I heard people who sleep an average of eight hours a day have less health problems.
  #Person1#: Looks like there are a lot of things to do to stay healthy.
  #Person2#: True. But I think it is worth it. When you get old, you want to be healthy and active.