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.
Relaxation techniques play a key role in reducing stress symptoms by slowing down the heart and breathing rates, reducing blood pressure, increasing blood flow to major muscles, reducing activity of stress hormones, easing muscle tension, lifting your mood, improving concentration, alleviating fatigue, and reducing anger and frustration.