
Despite that fact that two-thirds of Americans say they are on a diet to improve their health, very few are actually decreasing in size. "Dieting is a skill, much like riding a bicycle, and requires practice and good instruction, " says Jessica Bartfield,MD, internal medicine who specializes in nutrition and weight management at the Loyola Center for Metabolic Surgery & Bariatric Care. "You're going to fall over and feel frustrated, but eventually you will succeed and it will get easier."
An edition of Aristotle's Compleat Master-Piece from the 1760s is to be auctioned at Lyon & Turnbull in Edinburgh. Photograph: Jeff J Mitchell/Getty Images 
