<http://schema.org/description>
"The number on the scale alone can&amp;#039;t tell you whether you&amp;#039;re at a healthy weight. Because height is also a factor, scientists came up with a mathematical formula called Body Mass Index (BMI). Learn how to calculate your BMI."^^<http://www.w3.org/2001/XMLSchema#string>
<http://health.howstuffworks.com/wellness/diet-fitness/weight-loss/bmi3.htm>