One of the Founding Fathers of USA, Benjamin Franklin had a theory that caused him to believe that nudity was good for you. To avoid getting sick, Franklin came up with something he called an “air bath.” He would open the windows of his house to increase air circulation and then sit in front of the window in the nude, presumably to get the full effects of the increased airflow. He also used to take outdoor baths, where he would just walk around/spin around naked to use the air to clean himself.
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