Сhoose should or shouldn't

1. I've got a headache. You
   [shouldn't|should] sit so close to the TV.
2. I'm cold. You
   [shouldn't|should] put on a jumper.
3. The game starts at three o'clock. We  
   [shouldn't|should]  leave at two thirty.
4. He's always tired in the morning. He
   [shouldn't|should]  stay up so late.
5. I don't feel well. You  
   [shouldn't|should] stay in bed.
6. I want to lose weight. You
   [shouldn't|should] do some exercise.