Stahl's theory of tonic motion was about the muscle tone of the circulatory system. During his work at Halle, Stahl oversaw patients experiencing headaches and nosebleeds. Tonic motion explained these phenomena as blood needed a natural or artificial path to flow when a part of the body is obstructed, injured, or swollen. Stahl also experimented with menstruation, finding that bloodletting in an upper portion of the body would relieve bleeding during the period. During the next period, the wound would experience pain and swelling, which would only be relieved by an opening in the foot. He also followed this procedure as a treatment for amenorrhoea.
Stahl's theory of tonic motion was about the muscle tone of the circulatory system. During his work at Halle, Stahl oversaw patients experiencing headaches and nosebleeds Tonic motion explained these phenomena as blood needed a natural or artificial path to flow when a part of the body is obstructed, injured, or swollen. Stahl also experimented with menstruation, finding that bloodletting in an upper portion of the .body would relieve bleeding during the period. During the next period, the wound would experience pain and swelling, which would only be relieved by an opening in the foot. He also followed this procedure as a treatment for amenorrhoea.