Tuesday, 9 December 2014

HOW BEING OVERWEIGHT OR OBESE AFFECTS BLOOD PRESSURE

  Obesity or overweight is defined by WHO, as an abnormal or excessive fat accumulation that may impair health. Body mass index is used to define obesity or overweight. Body mass index is a person's weight in kilograms divided by the square of his/her height in meters. If the body mass index is greater than or equals 25, a person  overweight. If the body mass index is greater than or equals to 30, a person is obese.
   The more a person weighs, the more blood flow and volume is needed to supply oxygen and nutrients to the tissues.
 As the volume of blood circulated through the blood vessel increases , so  does the pressure needed to pump the blood. The blood pressure becomes permanently high in order to maintain blood flow to the body tissues. Hence causing a person to have high blood pressure.

Less weight  normal blood pressure, more weight more blood pressure

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