This document provides advice on healthy habits using modal verbs like "should", "shouldn't", "must", and "mustn't". It suggests people should exercise regularly, eat more fruits and vegetables as well as a varied diet. It also advises that people must eat breakfast, give up smoking, and see a doctor regularly. Additionally, the document recommends people shouldn't eat lots of sweets, junk food, or drink coffee and soft drinks excessively and mustn't drink too much alcohol.