High Blood Pressure or Hypertension is known as the silent killer. It is a condition that occurs without symptoms for many years and in most cases the cause is unknown. Genetic or environmental are the most explained reasons.
Blood pressure is the pressure your blood gives against your blood vessel walls as your heart pumps. Blood pressure rises with each heartbeat and falls when the heart relaxes between beats despite the fact that there is always pressure between the beats in the arteries.
Blood pressure is measured in millimeters of mercury. Normal blood pressure in adults should be less than 120/80 mm Hg. The higher, or top, number is called systolic pressure and represents the pressure at the peak of each heartbeat. It represents the when your heart is squeezing out the blood and the lower, or bottom; number is called diastolic and represents the pressure when the heart is resting between beats and filling with blood.