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Obesity is a term used to describe body weight that is much greater than what is considered healthy. If you are obese, you have a much higher amount of body fat than lean muscle mass.Adults with a BMI greater than 30 are considered obese.Anyone more than 100 pounds overweight or with a BMI greater than 40 is considered morbidly obese.
Review Date: 7/17/2007

Obesity hypoventilation syndrome (OHS) is a condition that occurs in obese people, in which poor breathing leads to lower oxygen levels and higher carbon dioxide levels in the blood.
Review Date: 8/10/2007

Obsessive-compulsive disorder is an anxiety disorder characterized by recurrent thoughts, feelings, ideas or sensations (obsessions) or behaviors that makes a person feel driven to perform (compulsions). A person may have both obsessions and compulsions. An example of obsessive-compulsive disorder is excessive, repeated handwashing to ward off infection.
Review Date: 5/8/2006

Obsessive-compulsive personality disorder is a condition characterized by a chronic preoccupation with rules, orderliness, and control.
Review Date: 11/15/2006

Obstructive uropathy involves a blockage of the flow of urine, causing it to back up and injure one or both kidneys.
Review Date: 5/10/2006

Occupational asthma is a lung disorder in which various substances found in the workplace lead to breathing difficulties.See also:Bronchial asthmaPediatric asthma
Review Date: 10/15/2007

Occupational hearing loss is damage to the inner ear from noise or vibrations due to certain types of jobs or entertainment.
Review Date: 10/20/2006

Oil-based paint poisoning occurs when large amounts of oil-based paint enter your stomach or lungs.
Review Date: 5/18/2007

Review Date: 10/23/2006

Review Date: 10/23/2006

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