All types of depression are not the same and symptoms vary person to person. Similarly, there is no one cause of depression. Depression is influenced by a number of factors, including genetics, chronic illness, life experiences, and sustance abuse.
Looking back over the past year or so it’s interesting to note the renewed interest in infection, and particularly inflammation, as a possible cause of depression. Recently, for example, some of the popular press has been spotlighting allergies. There’s no particular evidence to prove that allergies cause depression but there is an…