Write a short paragraph to summarise about obesity?

Being obese and being overweight are not exactly the same thing. An obese person has a large amount of extra body fat, not just a few extra pounds. People who are obese are very overweight and at risk for serious health problems.

To determine if someone is obese, doctors and other health care professionals often use a measurement called body mass index (BMI). First, a doctor measures a person's height and weight. Then the doctor uses these numbers to calculate another number, the BMI.

Once the doctor has calculated a child's or teen's BMI, he or she will plot this number on a specific chart to see how it compares to other people of the same age and gender. A person with a BMI above the 95th percentile (meaning the BMI is greater than that of 95% of people of the same age and gender) is generally considered overweight. A person with a BMI between the 85th and 95th percentiles typically is considered at risk for overweight. Obesity is the term used for extreme overweight. There are some exceptions to this formula, though. For instance, someone who is very muscular (like a bodybuilder) may have a high BMI without being obese because the excess weight is from extra muscle, not fat.
People gain weight when the body takes in more calories than it burns off. Those extra calories are stored as fat. The amount of weight gain that leads to obesity doesn't happen in a few weeks or months. Because being obese is more than just being a few pounds overweight, people who are obese have usually been getting more calories than they need for years.

Well obviously I'm not going to write your paragraph for you but your best bet is to write something simply about how obesity has become an epidemic of large (pun intended) proportions not only in the U.S. but around the world due to globalization (McDonalds everywhere you go) and the fact that technology (computers & Playstations) keep kids occupied and they never go outside and DO anything anymore. They just sit inside play video games and get fatter. We as a global population need to stop being so lazy, eat healthier, and get active again. (McDonalds everyday is NOT ok, and neither is playstation for hours on end.) Write about those basic ideas and you'll be done in no time!