A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism and is not due to any immediate external injury. While many may know common ailments by name, they might not know what it is. Over 133 million Americans, roughly 40% of the population, have been diagnosed with ongoing conditions. Even knowing the basics of a disorder can help understand what it’s like to be in the affected one’s shoes. From ADHD to OCD, Alice in Wonderland Syndrome to Addison’s Disease, this series will break down what it means to be diagnosed with an illness.