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Weight Linked to Depression

Obese Americans More Likely to Be Depressed, Compared to People of Normal Weight
WebMD Health News
Reviewed by Laura J. Martin, MD

Sept. 24, 2010 -- Nearly a quarter of obese Americans say they have been diagnosed with depression, a significantly higher percentage than normal weight people, according to the latest Gallup-Healthways Well-Being Index.

The new survey also says that more than one in four American adults who are obese are considerably more likely than people who are a normal weight to report experiencing negative feelings of stress, worry, anger, and sadness.

The survey finds that 23.2% of obese adults report having been diagnosed with depression, compared to 14.9% of people who are overweight, 14.3% of people of normal weight, and 19.1% of underweight people.

The report also says that:

  • 41.6% of obese people feel stressed, 34.5% say they worry, 15.7% report they feel angry, and 19.9% experience sadness.
  • 37.4% of overweight people feel stressed, 29.5% worry, 13.1% feel angry, and 15.8% suffer from sadness.
  • 39.4% of people of normal weight feel stressed, 30.6% worry, 12.6% experience anger, and 16.3% report sadness.
  • 42% of people who are underweight say they feel stressed, 35.9% worry, 16% feel angry, and 21.3% experience sadness.

The findings were based on more than 250,000 interviews between January-September 2010.

Classifications Based on Body Mass Index

Gallup calculates body mass index scores based on survey respondents’ self-reports of height and weight. BMI values of 30 or above are classified as obese, 25.0-29.9 as overweight, and scores between 18.5 and 24.9 put people in the normal range. A BMI of less than 18.5 is classified as underweight.

Gallup says that “carrying some extra weight does not appear to have the same effect as being obese, as negative emotion levels among those who are overweight are about the same as among those who are a normal weight.”

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