What if mental disorders like anxiety, depression or post-traumatic stress disorder aren’t mental disorders at all?
"Taken together, the authors posit that anxiety, depression and PTSD may be adaptive responses to adversity. “Defense systems are adaptations that reliably activate in fitness‐threatening situations in order to minimize fitness loss,” they write. It’s not hard to see how that could be true for anxiety; worry helps us avoid danger. But how can that be true for depression? They argue that the “psychic pain” of depression helps us “focus attention on adverse events... so as to mitigate the current adversity and avoid future such adversities.”