Determinants of Obesity

Key Points

• Obesity results from the interaction of genetic makeup, environment, and lifestyle.

• Genetic factors are estimated to account for 30% to 40% of the variability in adult weight.

• Genetic influence is polygenic.

• Specific metabolic or endocrine disorders account for less than 1% of the obese population.

When reduced to basics, obesity results from calorie consumption in excess of expenditure. What complicates this simple principle is the role of genetics, lifestyle, and environmental factors. Throughout human evolution there has been a survival advantage to storing energy as fat. The conveniences of modern life have led to a decrease in energy expenditure. At the same time, greater access to energy-dense food, along with other factors, has increased energy consumption. These changes, in the relatively recent past, negate the survival advantage of fat storage for most segments of the population.

Natural Treatments For Psoriasis

Natural Treatments For Psoriasis

Do You Suffer From the Itching and Scaling of Psoriasis? Or the Chronic Agony of Psoriatic Arthritis? If so you are not ALONE! A whopping three percent of the world’s populations suffer from either condition! An incredible 56 million working hours are lost every year by psoriasis sufferers according to the National Psoriasis Foundation.

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