Sweet Spot

Brought to you by Penguin.

A good life involves more than just pleasure. Suffering is essential too.

It seems obvious that pleasure leads to happiness - and pain does the opposite. And yet we are irresistibly drawn to a host of experiences that truly hurt, from the exhilarating fear of horror movies or extreme sport, to the wrenching sadness of a song or novel, to the gruelling challenges of exercis...