Causes of the flu. The flu is caused by influenza virus types A, B, and C. Both type A and type B flu viruses are responsible for the seasonal outbreaks of flu. Type A flu viruses are found in many different animals, including ducks, chickens, pigs, and horses. Influenza B viruses circulate widely only among humans.
Find healthy ways to manage stress. Consider healthy, stress-reducing activities such as meditation, exercising or talking things out with friends or family. Keep in mind that unhealthy behaviors develop over time and can be difficult to change. Don't take on too much at once.
How to Eat Right to Reduce Stress. During times of stress, we often turn to traditional comfort foods such as macaroni and cheese, pizza, and ice cream. Ironically, these high-fat foods are usually the worst possible choices because they can make us feel lethargic and less able to deal with stress.