Body fat is stored as an energy storage for the body and is used to prolong survival if and individual is faced with food deprivation (Harvey & Wither,2008). In order for the body to function well the it needs a certain amount of body fat (Harvey & Wither,2008). In spite of that having excessive amounts of body fat can put you at risk of developing many health problems and diseases (Harvey & Wither,2008). This being obesity which is one of the most concerning health problems across the world. It can increase the risk of so many chronic disease as well (Harvey & Wither,2008). Some being diabetes, cardiovascular disease, respiration disease, osteoarthritis and many more (Harvey & Wither,2008). Small imbalances over a long period can cause the body to become over weight and obese (Harvey & Wither,2008). Obesity is not only increasing in young children and adolescents as well and is known to be one of the worlds biggest killers (Haslam & Wittert,2009). Obesity affects over 20-25% of the population (Haslam & Wittert,2009). The World Health Organization suggests the use of the body
mass index as a standard tool with diagnosing someone with Obesity (Harvey & Wither,2008). This is an estimated measurement of body size and it is used to demonstrate the level of risk you are at for having obesity and how severe it can be on an individuals health (Harvey & Wither,2008). BMI is calculated by diving the individuals weight in kilograms by the individuals height in metres square (Harvey & Wither,2008). People who have a BMI of 25 or more go under the classification of overweight (Harvey & Wither,2008). People who have a BMI of 30 or over go under the classification of obese (Harvey & Wither,2008). The BMI calculations play a very important role in indicating if an individual is at risk of becoming overweight and or obese (Harvey & Wither,2008). The BMI indicates a reasonable estimate of body fat but doesnt measure the exact body fat an individual has (Harvey & Wither,2008). Athletes with mass amounts of muscle may come under the obesity category due to their body weight being high. Obesity can increase the risk of so many chronic disease (Harvey & Wither,2008).