Blood Pressure Checker

Blood pressure is the force exerted by circulating blood on the walls of the arteries. It is measured as two numbers: systolic pressure (the higher number) · the pressure when the heart beats and pumps blood · and diastolic pressure (the lower number) · the pressure when the heart rests between beats. It is expressed in millimeters of mercury (mmHg), e.g., 120/80 mmHg.

According to the American Heart Association, normal blood pressure is less than 120/80 mmHg. Elevated blood pressure is 120-129 systolic with less than 80 diastolic. Stage 1 hypertension is 130-139/80-89 mmHg, and Stage 2 hypertension is 140/90 mmHg or higher. A hypertensive crisis requiring immediate medical attention is above 180/120 mmHg.

Most cases of high blood pressure (essential hypertension) have no single identifiable cause but are linked to a combination of factors: excess dietary sodium, being overweight or obese, physical inactivity, excessive alcohol consumption, smoking, chronic stress, family history, and aging. Secondary hypertension · caused by an underlying condition such as kidney disease, thyroid disorders, or certain medications · accounts for about 5-10% of cases.

Lifestyle changes that have strong clinical evidence include: following a DASH diet (rich in fruits, vegetables, whole grains, and low-fat dairy), reducing sodium intake to under 2,300 mg/day, engaging in regular aerobic exercise (at least 150 minutes per week), limiting alcohol to 1-2 drinks per day, quitting smoking, managing stress through mindfulness or relaxation techniques, and maintaining a healthy weight. These changes can reduce systolic BP by 4-11 mmHg.

You should consult a healthcare provider if your blood pressure consistently reads 130/80 mmHg or higher, even if you feel fine · hypertension is often symptom-free. Seek emergency medical care immediately if readings exceed 180/120 mmHg, especially if accompanied by severe headache, chest pain, vision changes, difficulty breathing, or numbness. Regular monitoring is important for everyone over age 40 or with risk factors.