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.
1 Go for a walk or run: Exercising can be a good way to relieve stress. 2  It helps to get rid of pent up energy and can leave you feeling much calmer. 3  Exercising also releases endorphins, the bodyâs natural feel-good hormones, which make you feel less pain, and make you happier overall!