Many adolescents seem to be lacking important information and guidance regarding exercise and nutrition. They don't know how to manage their weight and are becoming either overweight or underweight. A teen's ideal weight can be determined using the body mass index for children.
After infancy, the teen years mark the second fastest growth stage in life. It can be hard for a teen to manage his or her weight during this time. Teens need enough energy in the form of calories to grow and stay active. If they take in too many calories and don't burn them off, the energy is stored in the body as fat. Over time, this leads to weight gain. Teens who don't take in enough calories and nutrients don't have the energy to grow or function properly.
Overweight teens
There are many reasons why a teen might become too heavy. They include the following:
Long-term effects of overweight
Overweight teens often become overweight adults. They are at greater risk for developing a chronic disease, such as the following:
Being overweight also can lead to low self-esteem. Many overweight teens isolate themselves from their peers and do not take part in outside activities. This can lead to even more weight gain.
Helping an overweight teen
Following are some ways that families can help overweight teens develop healthy habits.
Families can teach a child how to eat a healthy diet and get enough exercise. For instance, parents can help in the following ways.
If a teen chooses to participate in a structured weight management program, it should do the following:
Exercise
Exercise is most successful if it is incorporated into the teen's lifestyle. Following are some effective forms of exercise:
Underweight teens
Being underweight also is linked to health risks, especially if it is caused by malnutrition. A diet with too few calories may not supply the energy or nutrients needed for growth and development. Too little food energy leads to fatigue, irritability, and lack of concentration. Being underweight can decrease immune response to infection and disease. It also can interfere with normal menstrual cycles, increasing the risk for osteoporosis in later life.
Dieting can lead to more serious health problems, like anorexia nervosa or bulimia. These conditions are life-threatening and require professional help to treat.
Helping the underweight teen
Many of the tips listed above to help overweight teens also can be applied to underweight teens. Here are a few more that are geared to help underweight teens.
Families also need to work with teens and show them how to make healthy eating and exercise a part of their daily routine for the rest of their lives.