The same can be said about the people we surround ourselves with on a daily basis. The information that we absorb affects our life and eventually has to be released. Our emotions can affect our health, but so too can the people around us, not to mention television, movies and music. I enjoy listening to certain types of music. It would be naive of me not to believe that music doesn't affect the quality of my day.
Anger needs fuel to increase.
Be aware of what you take in. I'm a firm believer in the importance of the link between the physical and spiritual world. I can't express enough how vital the balance between the two is needed. So much of life is lived between the two. Right in the middle.