Less and less people today are experiencing optimum health. According to the CDC, about one-third of U.S. adults (33.8%) are obese. Approximately 17% (or 12.5 million) of children and adolescents aged 2—19 years are obese.
Why the concern?
Research has shown that as weight increases to reach the levels referred to as "overweight" and "obesity,"* the risks for the following conditions also increases:
Coronary heart disease
Type 2 diabetes
Cancers (endometrial, breast, and colon)
Hypertension (high blood pressure)
Dyslipidemia (for example, high total cholesterol or high levels of triglycerides)
Stroke
Liver and Gallbladder disease
Sleep apnea and respiratory problems
Osteoarthritis (a degeneration of cartilage and its underlying bone within a joint)
Gynecological problems (abnormal menses, infertility)
*Overweight is defined as a body mass index (BMI) of 25 or higher; obesity is defined as a BMI of 30 or higher.
Sources:
http://www.cdc.gov/obesity/data/trends.html
http://www.cdc.gov/obesity/causes/health.html