| BMI or Body Mass Index is statistical measurement which compares a person's weight and height. Body mass index is defined as the individual's body weight divided by the square of his or her height. BMI is a important tool to measure the percentage of body fat and to estimate the health body weight. In this thesis, some research were done. The objects are boy teenagers that live in Jakarta area, this research were done to acknowledge the percentage of healthy body weight and the connection between Body Mass Index with eating habits and exercise activities. A conventional method were used in this research, the objects of research were being measured directly. The height, weight, Systolic Blood Pressure and Diastolic Blood Pressure of the objects were needed. The result of this research shows that there are connections between Body Mass Index with eating habits, exercise activities, and also blood pressure. The result shows that dietary habits and physical activities effects on the BMI index on boy teenagers that live in Jakarta and the higher BMI index that they have, they blood pressure also higher. The evaluation were done to know the cause of underweight and overweight problems on male teenagers in Jakarta. By doing the Body Mass Index research, it could overcome this problems, there are some advice that could solve the health problems on boy teenagers in Jakarta. |