B1 Understanding Organisms

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FITNESS AND HEALTH

BLOOD PRESSURE:

Blood pressure is measured in millimeters of mercury. This is written as mmHg.

Blood pressure has two measurements: SYSTOLIC PRESSURE is the maximum blood pressure the heart produces and DIASTOLIC PRESSURE is the pressure between the heart beats.

Different factors can cause a person's blood pressure to increase or decrease:

- It can be increased by stress, high alcohol intake, smoking and being overweight

- It can be decreased by exercise and eating a balanced diet.

High blood pressure can cause blood vessels to burst. This can cause damage to the brain, which is often called a stroke. It can also cause damage to the kidneys.

Low blood pressure can cause dizziness and fainting as the blood supply to the brain is reduced, and poor circulation to other areas such as toes and fingers.

FITNESS AND HEALTH:

There is a difference between FITNESS and HEALTH.

-Fitness is the ability…

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