Allergy

Allergy is the most common chronic disease in the U.S. About 50 million Americans suffer from one or more allergies. Having allergies can be very uncomfortable and make it hard...

Allergy is a condition caused by an abnormal reaction of the immune system to substances that are harmless to most people. These substances commonly include materials such as pet dander,...

Finally, allergies may have an upside. A new study suggests that allergies may reduce the risk of developing brain cancer. According to a study at the University of Illinois, Chicago,...

An allergy occurs when your body’s immune system overreacts to something that is harmless to most people by releasing a chemical called histamine to counteract it. When histamine gets released...

Allergy is an abnormal reaction of the body’s immune system response to substances that are generally harmless for most people. These substances are known as allergens and are found in...