Is Obesity a Pandemic?

According to a new article published in American Psychologist, obesity has become a true pandemic. In the United States, over two thirds of adults are obese or overweight. The prevalence of obesity has doubled since 1980. The increase in the prevalence of obese and overweight individuals has happened too rapidly for it to be due to an alteration in the genome. The gastrointestinal, sensory (taste and olfaction), and brain feeding mechanisms that developed during the past 2 million years were highly adaptive for ancestral hunter-gatherers living in an environment with limited high-density foods and periods of food deprivation. Today, however, humans in industrialized countries live in what has been called an “obesogenic environment.” The nonhomeostatic brain reward circuitry that was acquired during evolution to seek out and eat as many nutritionally high-dense foods as possible is able to overrule the physiological inhibitory mechanisms that were designed to limit meal size and weight gain.

For the abstract

           

Related Stories

  • Getting Around To Procrastination
  • Chronic Pain and Suicide
  • Even Beloved Comic Character Beetle Bailey Battles PTSD
 

 
disclaimer

The information provided on the PsyWeb.com is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her health professional. This information is solely for informational and educational purposes. The publication of this information does not constitute the practice of medicine, and this information does not replace the advice of your physician or other health care provider. Neither the owners or employees of PsyWeb.com nor the author(s) of site content take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading this site. Always speak with your primary health care provider before engaging in any form of self treatment. Please see our Legal Statement for further information.

PsyWeb Poll

Are you currently taking or have you ever been prescribed anti-depressants?
Yes
50%
No
50%
Total votes: 3979