The normal range of blood pressure for a 16 year old boy is 90-140mmHg systolic, 60-90mmHg diastolic. 16 year old boys are in the growth and development period, they should maintain a good work and rest time and a reasonable diet, less late nights, sleep time of 8 hours or so, eat a diet rich in protein and calcium foods, eat less fatty foods, such as fried food. At the same time, keep the weight in a standard range, the weight can not be too low or obese, to strengthen the physical exercise, and ask whether there is a family hereditary hypertension, usually pay attention to do not stay up too late, too much pressure to study, as well as too little exercise, these factors will affect the changes in blood pressure.