Normal blood pressure in men in their 50s is around 120/80 mmHg. If the blood pressure is ≥ 140/90 mmHg on multiple measurements, hypertensive disorders are diagnosed. If the blood pressure is below 90/60 mmHg, it is hypotensive. When measuring blood pressure, try to do it in a quiet state. For self-measurement of blood pressure at home, try to use an upper-arm electronic blood pressure monitor. If blood pressure is measured at a clinic or hospital, try to avoid stressful emotional factors. Current research has found that sodium intake is significantly and positively correlated with blood pressure levels, so pay attention to a low-salt diet in your life. Also pay attention to moderate exercise, weight control, avoid staying up late, quit smoking, quit drinking, etc.