What is Blood Pressure(BP):

Blood Pressure: the pressure on the blood vessel wall when the heart pump out the blood into the vessels.
Systolic BP (Upper BP): the pressure when the heart contracts.
Diastolic BP (Lower BP): the pressure when the heart relaxes.

Normal Blood Pressure is not constant:

BP will increase with anxiety, exercise, and other stress.

24-hour blood pressure change in normal individuals
 

What is Hypertension:

Blood Pressure persistently to be higher than 140/90 mmHg at rest.
 
1. Causes:
 
Primary hypertension / no known causes
Secondary Hypertension, eg. Renal Disease, Renal Artery Narrowing
 

2. Symptoms:

Majority is symptom-free.

Minority has headaches, dizziness, fatigue

3. Complications:

Heart Failure

Coronary Heart Disease

Stroke
( Cerebral Hemorrhage)

Renal Failure

4. Drug therapy:

Various drugs can control the blood pressure and reduce the complications effectively.
     - Take medicine on time
     - Take medicine regularly
     - Regular check-up

5. Prevention:

Healthy life style:
 

Stop smoking

Keep desirable weight

Moderate exercise

Control salt-intake
 
Check BP every two years in adults

 

  Common Heart Diseases and Hypertension