Obesity is an accumulation of excessive fat that jeopardizes a persons health and imbalance in energy causing excessive weight gain. At least 30% of the world’s population were over weight in 2008, afflicting 200 million males and 300 million females. Causes of obesity are food intake, sedentary lifestyle, poor quality of sleep and genetics. Strategies to avoid obesity are increased physical exercise, improve sleep pattern and proper nutrition. Physical therapy can help patients incorporate healthy lifestyle changes through exercise, diet and sleep to avoid obesity and manage weight.