Why is there an obesity epidemic?

Dr. David L. Katz, MD, MPH
Preventive Medicine
We have epidemic obesity for many good reasons. Fundamentally, we have converted a world in which calories were relatively scarce and hard to get and physical activity unavoidable into a world where physical activity is scarce and hard to get and calories are unavoidable. We’ve solved the age-old problem of food scarcity by devising, for our part of the world at least, food excess. We’ve solved the problem of over-taxed muscles by devising technology to do just about everything muscles used to do. We’ve solved the problem of food spoilage by devising highly processed foods that might literally have a longer shelf life than the person eating them.

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