1.Nick washes his hands a lot so he doesn't have the flu.

2.David eats lots of junk food and he doeen't do exercise.

3.The doctor told Elena that she should sleep more or she try to relax more.

4.My sister plays computer games but she does exercise too.

5.Eating carrots will help you see object more clearly at night.

6.Going outside with wet hair will give you a cold or flu.

7.Eating fresh fish will make you smarter.