Mathematics (from Greek Î¼Î¬Î¸Î·Î¼Î± mathÄma, âmÃ¡thÄma, knowledge, studyâ) learning is the study of topics such as (quantity), numbers, structure, space and. Change there is a range of views among mathematicians and philosophers as to the exact scope and definition of. mathematics
1 The Obesity Guidelines focus on what interventions are effective for weight loss, and how this can best be managed in a clinical context.  The Obesity and Dietary Guidelines both recommend healthy eating, physical activity and behavioural modification to address overweight and obesity.
Presently, there is no precise clinical definition of obesity based on the degree of excess body fat that places an individual at increased health risk. General consensus exists for an indirect measure of body fatness, called the weight-for-height index or body mass index (BMI). The BMI is an easily obtained and reliable measurement for overweight and obesity and is defined as a person's weight (in kilograms) divided by the square of the person's height (in meters).