depression evolution

Depression Evolutionary Byproduct Of The Ability To Fight Infection?

Depression Evolutionary Byproduct Of The Ability To Fight Infection?

Depression is common enough, afflicting one in ten adults in the United States. It seems the possibility of depression must be “hard-wired” into our brains. This has led biologists to propose several theories to account for how depression, or behaviors linked to it, can somehow offer an evolutionary advantage.