The Evolution of Anxiety

Mismatch occurs when an organism suffers negative health or fitness consequences as a result of living in an environment that differs radically from its natural environment. Mismatch is one of the most important insights of evolution in medicine and is the explanation of many of the so-called diseases of civilization. So there are many, many aspects in the modern environment which are actually much, much safer than the ancestor environment. But there are many aspects that are different and can cause uncertainty, distress and anxiety.