Childhood obesity can be brought on by a range of factors which often act in combination. “Obesogenic environment” is the medical term set aside for this mixture of elements. The greatest risk factor for child obesity is the obesity of both parents. This may be reflected by the family's environment and genetics. Other reasons may also be due to psychological factors and the child's body type. Factors include the increase in use of technology, increase in snacks and portion size of meals, and the decrease in the physical activity of children. A study found kids that use electronic devices 3 or more hours a day had between a 17- 44% increased risk of being overweight, or a 10- 61% increased risk of obese. Childhood obesity is common among children from, low-income, African American and Hispanic communities. This is mainly because minority children spend less time playing outside the house and staying active. Some contributors to childhood obesity are that parents would rather have their children stay inside the home because they fear that gang, drug violence, and other dangers might harm them. Overweight is weight-for-height greater than 2 standard deviations above WHO Child Growth Standards median; and obesity is weight-for-height greater than 3 standard deviations above the WHO Child Growth Standards median.