Mari Ruti at The Chronicle Review:
If all of that isn't enough to make you suspicious of the cultural injunction to be happy, consider this basic psychoanalytic insight: Human beings may not be designed for happy, balanced lives. The irony of happiness is that it's precisely when we manage to feel happy that we are also most keenly aware that the feeling might not last. Insofar as each passing moment of happiness brings us closer to its imminent collapse, happiness is merely a way of anticipating unhappiness; it's a deviously roundabout means of producing anxiety.
Take the notion that happiness entails a healthy lifestyle. Our society is hugely enthusiastic about the idea that we can keep illness at bay through a meticulous management of our bodies. The avoidance of risk factors such as smoking, drinking, and sexual promiscuity, along with a balanced diet and regular exercise, is supposed to guarantee our longevity. To a degree, that is obviously true. But the insistence on healthy habits is also a way to moralize illness, to cast judgment on those who fail to adhere to the right regimen. Ultimately, as the queer theorist Tim Dean has illustrated, we are dealing with a regulation of pleasure—a process of medicalization that tells us which kinds of pleasures are acceptable and which are not.