The document provides tips for preventing the flu by maintaining hygiene, exercising self-care of the nervous system, having a healthy diet, taking supplements, and understanding fever. It recommends washing hands frequently, coughing into the elbow, getting tissues, and washing clothes. Exercising, drinking water, eating fruits and vegetables, and limiting sugar are diet recommendations. Taking vitamins and probiotics is suggested. Fever is described as beneficial in fighting illness with rest and broth recommended for support.