The Heidelberger Researcher’s night, that happened in the evening of 27th September 2019, was the time when scientists shared their work with society. And our lab was also glad to explain to our visitors how we feel the ambient temperature around us, and how the brain regulates the body temperature. The public also had the chance to participate in a brief experiment, in which an infrared picture was taken after a cold or hot challenge. For example, after putting the hands into an ice bucket or after drinking a cup of tea. The infrared image, then, demonstrated how the external body temperature quickly changed after the colder or hotter experiment. Curious and enthusiastic participants were happy to engage in our activities, showing that learning more about science can be a lot of fun!