Simply defined, obesity is the result of an energy imbalance over an extended period of time. If we have a pattern of taking in more calories than we can burn off, our bodies store the extra calories as fat, increasing our risk of health problems.

Genetics also plays a role, since obesity tends to run in families. Our environment and the choices we make every day are additional factors–choosing unhealthy foods (fast food, sugary beverages, high-calorie / low-nutrient snacks); eating large portions (super-size meals); and leading less active lifestyles (driving, TV, video games, and computers) can all contribute to obesity. Stress, depression, and boredom can often lead us to reach for “comfort foods” like potato chips or ice cream, resulting in intake of “empty” calories.

Your doctor uses a measure called body mass index (BMI) to determine if you are underweight, normal, overweight, or obese for your height and weight.

BMI percentiles are obtained by plotting a person’s BMI number on CDC’s (Centers for Disease Control) BMI growth chart, taking into account the person’s age and gender.

If you or your child are overweight or obese, you may be at risk for certain health conditions and should consult your physician or pediatrician. It’s never too late to start making positive changes and to take simple steps towards a healthier you.

by Harvinder Sareen, PhD

To calculate your child’s BMI Percentile, go to http://apps.nccd.cdc.gov/dnpabmi/Calculator.aspx and www.cdc.gov/healthyweight