Heartwarming: How Our Inner Thermostat Made Us Human

A hot cup of tea, coffee or cocoa is calming and comforting-but how can holding a warm mug affect our emotions? In Heartwarming, social psychologist Hans Rocha IJzerman explores temperature through the long lens of evolution. Besides breathing, regulating body temperature is one of the fundamental tasks for any animal. Like huddling penguins, we humans have long relied on each other to maintain our temperatures; over millennia, this instinct for thermoregulation has shaped our lives and culture.