Are you feeling better today , Bill ?   Well , it's hard to say . I cough a lot in the evening .   You'd better give up smoking . It's bad for your health .   You're right , but you know , it's hard to give up an old habit .   But you should make up your mind first .   You know , I often have to work till late at night . I need something to keep me awake .   Why don't you go to bed and get up early ? You'll have the same time for work . 