Hypocaust
The Roman bathhouses were heated by the hypocaust system. The heat would rise up from pipes under the floor into the water or the rooms.
Well they used them as a hangout a place to gossip and well to get clean
They go there to take a bath or just to chat. They also do massage and go for a little swim(sometimes).
The Romans had good public health due to their personal cleanliness and fresh water supply. Plus, they were not stupid. They knew certain health hazards and although they may not have had a cure for...