The Journal of Bone and Joint Surgery (American) 83:1782 (2001)
© 2001 The Journal of Bone and Joint Surgery, Inc.
Brain, Bone, and Body Mass: Fat is Beautiful Again
Thomas A. Einhorn, MD
Deputy Editor for Current Concepts Reviews
Throughout history, a voluptuous or husky body habitus has
been associated with affluence, beauty, and, in many societies,
health. It was not until the middle of the twentieth century that
Western civilizations began to express a cosmetic preference for
a slender body build; this was followed by actuarial data showing
that life expectancy is reduced when body-mass index (body
mass in kilograms divided by the square of the height in meters)
is 20% above the ideal1.
However, independent of ones health, or of the "beholders
eye" in which the "beauty lies," the
belief that obesity is largely a result of a lack of willpower has recently
been challenged. Studies of twins, analyses of familial aggregation,
adoption studies, and animal models of obesity all lead to the conclusion
that obesity is the result of both genetic and environmental factors2-4. Over a half-century ago
. . . [Full Text of this Article]

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