The bipolar disorder pendulum: Depression as a compensatory adaptation

var citeN=0;As far as explaining natural phenomena, Darwin was one of the best theoretical researchers of all time. Yet, there were a few phenomena that puzzled him for many years. One was the evolution of survival-impairing traits such as the peacock’s train, the large and brightly colored tail appendage observed in males. Tha male peacock’s train is detrimental to the animal’s survival, and

bipolar disorder, costly traits, evolution, manic-depressive disorder, mental health, personality traits, Zahavian traits