Hi , Mr . Smith . I'm Doctor Hawkins . Why are you here today ?   I found it would be a good idea to get a check-up .   Yes , well , you haven't had one for 5 years . You should have one every year .   I know . I figure as long as there is nothing wrong , why go see the doctor ?   Well , the best way to avoid serious illnesses is to find out about them early . So try to come at least once a year for your own good .   Ok .   Let me see here . Your eyes and ears look fine . Take a deep breath , please . Do you smoke , Mr . Smith ?   Yes .   Smoking is the leading cause of lung cancer and heart disease , you know . You really should quit .   I've tried hundreds of times , but I just can't seem to kick the habit .   Well , we have classes and some medications that might help . I'll give you more information before you leave .   Ok , thanks doctor . 