Put a word from the box in each gap to complete the following passage.

diet

contribute

calories

overweight

physical activity

more

lifestyle

cause

Causes of Childhood Obesity

      Family history; psychological factors, and (1)                                 all play a role in childhood obesity. Children whose parents or other family members are (2)                     or obese are more likely to follow suit. But the main (3)                       of childhood obesity is a combination of eating too much and exercising too little.

      A poor (4)                                    containing high levels of fat or sugar and few nutrients can cause kids to gain weight quickly. Fast food, candy, and soft drinks are common culprits. The U.S. Department of Health & Human Services (HHS) reports that 32 percent of adolescent girls and 52 percent of adolescent boys in the United States drink 24 ounces of soda - or more - per day.

      Convenience foods, such as frozen dinners, salty snacks, and canned pastas, can also (5)                        to unhealthy weight gain. Some children become obese because their parents don't know how to choose or prepare healthy foods. Other families may not be able to easily afford fresh fruits, vegetables, and meats.

      Not enough (6)               can be another cause of childhood obesity. People of 'all ages tend to gain weight when they're less active. Exercise burns (7)                   and helps you maintain a healthy weight. Children who aren't encouraged to be active may be less likely to burn extra calories through sports, time on the playground, or other forms of physical activity.

      Psychological issues may also lead to obesity in some children. Kids and teens who are bored, stressed, or depressed may eat (8)                                    to cope with negative emotions.