Allergies could be affecting the brain
http://www.kplctv.com/story/16337659/allergies-could-be-affecting-the-brain
http://www.kplctv.com/story/16337659/allergies-could-be-affecting-the-brain
"People with severe allergies will not only feel fatigue, they can feel irritable, depressed, and even have symptoms similar to attention deficit disorder. A new study is showing that allergies affect more than the respiratory system, and could actually be affecting the brain."