Obesity is a growing problem around the world.
Obesity is defined as having a body mass index (BMI) of over 30. BMI is used to determine whether you are in a healthy weight range for your height. For instance, a person who is 180cm (5ft 11in) and 97kg (213lb) has a BMI of 29.7.
The rate of obesity varies greatly around the world. Please have a look at the map below and discuss what you see with your teacher.