Choose the correct expression

1. Joan [had better|is likely to] exercise more to reduce her stress.
2. Lea [is bound|is supposed] to see her dentist at 3 o'clock.
3. You [are to|are likely to] take the medication twice a day for eight days.
4. A high stress lifestyle [had better|is bound to] cause health problems.
5. [Would|Why don't] we take a walk in the park?
6. Her high blood pressure [is unlikely to|is supposed to] drop unless she reduces her stress.
7. Health problems due to stress [are to|are likely to] the next ten years.