Our new study utilizes a natural field experiment and finds that in the real world, people are motivated to give based on perceived benefits to themselves.

Ever wondered why the spiciest food comes from hot countries, but cold countries often have plainer comfort food? We analysed recipes from all over the world to test the “Darwinian gastronomy” hypothesis that spices are used because they protect people from food poisoning.

Reflections on the paper "Daily, weekly, seasonal and menstrual cycles in women’s mood, behaviour and vital signs"