Depression is undoubtedly a product of social/food/sexual engineering. In the field, fornication leads to 'instant karma,' and the guy literally loses productivity. In the case of the prostitute, even with the fridge full, she might end up simply forgetting to eat or not wanting to prepare food properly, or because she's a feminist and doesn't cook, and definitely because of the compulsive state that consumes her.

Recipe for depression:

Methylfolate + lithium dimethyl bicarbonate + magnesium dimalate

Or simply eat kale; also adding the basic dose of beef liver, whole salt, and fruits.