Blood pressure is the result of two forces: from the heart as it pumps blood into the arteries and throughout the circulatory system, and the force of the arteries as they resist blood flow.
<span>You probably have high blood pressure (hypertension) if your blood pressure readings are consistently 140 over 90, or higher.
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If you have high blood pressure, this higher pressure puts extra strain on your heart and blood vessels. Over time, this extra strain increases your risk of a heart attack or stroke.
High blood pressure can also cause heart and kidney disease and is closely linked to some forms of dementia.
Waves even out a shoreline by eroding it.
The waves coming to shore gradually change direction , as different parts of the wave begins to drag the bottom.
The energy of the wave is concentrated on headlands , part of the shore that sticks out into the ocean.
As waves erode the headlands the shoreline will eventually
