|Owner:||Science Museum of Minnesota|
|Country of Origin:||United States of America|
|Tags:||Medicine and Quackery|
|Jigsaw Puzzle||Click Here to Play|
These chairs were popular in sanitariums of the early 20th century. Electrical power was used to shake the chair up and down as the patient sat on it. People believed that the shaking effect would improve breathing and relieve constipation.