Blood pressure of 140 mmHg in young people is not necessarily very serious, and if it only occurs occasionally or after exercise, the phenomenon of elevated blood pressure, as long as regular monitoring to determine the blood pressure can return to normal values. Normal human blood pressure should be less than 120/80mmHg, diastolic blood pressure between 140-159mmHg is a level of hypertension. The reason for elevated blood pressure in young people is mostly related to unhealthy lifestyle habits, such as smoking, long-term alcohol consumption, high-salt diet, long-term late night, and overweight. In addition, some young people may also have elevated blood pressure related to genetic factors. If one or both parents in the family suffer from hypertension, the chances of children developing hypertension will also be higher. If a young person’s blood pressure continues to reach 140 mmHg, he or she should go to the hospital for a timely checkup to determine the cause. Daily attention to adjust lifestyle habits, appropriate increase exercise, exercise, regular diet, avoid staying up late, relax, low salt, low fat diet.