Human: I've heard that a good way to relieve stress is to go to a sauna. What is a sauna? Assistant: 
A sauna is a room or area in which the air is heated to a high temperature, typically around 100°C (212°F). People sit in the sauna for up to an hour and sweat out toxins from their bodies. The heat causes the body's core temperature to rise, which can help reduce stress levels.