Understanding Blood Pressure

Introduction

Blood pressure is the force exerted by circulating blood against the walls of arteries. It is measured in millimeters of mercury (mmHg) and is usually recorded as two numbers:

  • Systolic pressure (top number): The pressure when the heart beats and pushes blood through the arteries.
  • Diastolic pressure (bottom number): The pressure when the heart rests between beats.

Normal and Abnormal Blood Pressure Levels


Blood Pressure Category Systolic (mmHg) Diastolic (mmHg)
Normal <120 <80
Elevated 120-129 <80
Hypertension Stage 1 130-139 80-89
Hypertension Stage 2 ≥140 ≥90
Hypertensive Crisis >180 >120 (Medical Emergency)

Why Is High Blood Pressure Dangerous?

Hypertension (high blood pressure) is often called the "silent killer" because it may not cause symptoms while damaging vital organs. Uncontrolled hypertension increases the risk of: - Heart attack and stroke - Heart failure - Kidney disease - Vision loss

How to Control Blood Pressure

Lifestyle Changes:

  1. Healthy Diet : Eat more fruits, vegetables, whole grains, and low-fat dairy; reduce salt intake.
  2. Regular Exercise : Aim for at least 150 minutes of moderate physical activity per week.
  3. Weight Management : Maintain a healthy body weight.
  4. Limit Alcohol and Quit Smoking .
  5. Manage Stress : Practice relaxation techniques like meditation.

Medications:

  • Doctors may prescribe antihypertensive medications if lifestyle changes alone are not enough.
  • Common types include diuretics, beta-blockers, ACE inhibitors, calcium channel blockers.

When to See a Doctor?

  • If your blood pressure readings remain high despite lifestyle changes.
  • If you experience chest pain, shortness of breath, or severe headaches.
  • If you have a blood pressure reading higher than 180/120 mmHg – seek emergency care immediately.

Conclusion

Monitoring and controlling your blood pressure is crucial for heart health. Regular checkups, lifestyle changes, and medications (if necessary) help prevent serious complications.

Source recommendations

1. American College of Cardiology/American Heart Association Hypertension Guidelines

  1. https://www.acc.org/Latest-in-Cardiology/Articles/2024/02/05/11/43/2023-ESH-Hypertension-Guideline-Update
  2. https://www.ahajournals.org/doi/10.1161/hyp.0000000000000065
  3. https://www.acc.org/Latest-in-Cardiology/ten-points-to-remember/2017/11/09/11/41/2017-Guideline-for-High-Blood-Pressure-in-Adults
  4. https://pubmed.ncbi.nlm.nih.gov/29133356/
  5. https://www.ahajournals.org/doi/10.1161/CIRCULATIONAHA.121.054602

2. European Society of Cardiology/European Society of Hypertension Guidelines

  1. https://www.escardio.org/Guidelines/Clinical-Practice-Guidelines/Elevated-Blood-Pressure-and-Hypertension
  2. https://www.ejinme.com/article/S0953-6205(24)00238-3/fulltext
  3. https://academic.oup.com/eurheartj/article/39/33/3021/5079119
  4. https://pubmed.ncbi.nlm.nih.gov/37345492/
  5. https://www.eshonline.org/

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