Simplify the following text for a Grade 12 native English-speaking person.
Original: In 1655 , the advocate of Galenic physiology Edmund O'Meara said that `` the miserable torture of vivisection places the body in an unnatural state . ''
Simplified: In 1655 , Edmund O'Meara said that `` the miserable torture of vivisection places the body in an unnatural state . ''