Good morning, Mr. Smith. How can I help you?
Hello, doctor. I'm always tired, and I don't sleep well.
OK. How long have you had this problem?
Since I started my new job.
What do you do?
I'm a computer programmer.
How many hours do you work?
I work about 80 hours a week.
80 hours? That's a lot.
And how much exercise do you get?
Not much, I don't have the time.
OK. It seems to me that you work too much.
You need to work less and find time to get more exercise.