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.
Short bursts of stress may help your immune system. But lasting stress is a problem. It can hamper your immune system. You can take action to tame stress. Make these steps part of your stress management plan: 1  Get enough sleep. 2  Learn and use relaxation techniques.3  Exercise.4  Take time for yourself.anage Your Stress. Everyone gets stressed. Short bursts of stress may help your immune system. But lasting stress is a problem. It can hamper your immune system. You can take action to tame stress. Make these steps part of your stress management plan: 1  Get enough sleep. 2  Learn and use relaxation techniques. 3  Exercise.