What is 高血压?
First, let’s define high blood pressure.
高血压, also known as hypertension, is when your blood pressure, the force of your blood pushing against the walls of your blood vessels, 始终过高.
How your blood pressure 和 circulatory system work
To survive 和 function properly, your tissues 和 organs need the oxygenated blood that your circulatory system carries throughout the body. 当心脏跳动时, it creates pressure that pushes blood through a network of tube-shaped blood vessels, 包括动脉, 静脉和毛细血管. This pressure — blood pressure — is the result of two forces: The first force (systolic pressure) occurs as blood pumps out of the heart 和 into the arteries that are part of the circulatory system. The second force (diastolic pressure) is created as the heart rests between heart beats. These two forces are each represented by numbers in a 血压读数.
See how high blood pressure can damage your arteries 和 heart.
The damage starts in your arteries 和 heart.
The primary way that high blood pressure causes harm is by increasing the workload of the heart 和 blood vessels — making them work harder 和 less efficiently.
随着沙巴足球体育平台的推移, the force 和 friction of high blood pressure damages the delicate tissues inside the arteries. 反过来，LDL(有害) 胆固醇 forms plaque along tiny tears in the artery walls, signifying the start of 动脉粥样硬化.
The more the plaque 和 damage increases, the narrower the insides of the arteries become — raising blood pressure 和 starting a vicious circle that 进一步的伤害 your arteries, heart 和 the rest of your body. This can ultimately lead to other conditions ranging from 心律失常 to 心脏病 和 中风.
- See how high blood pressure can damage the inside of your arteries.
- See how 动脉粥样硬化 takes place.
- See how your heart can become enlarged.
- See an infographic of the consequences of high blood pressure. (PDF)
高血压 is a 'silent killer.'
You may not feel that anything is wrong, but high blood pressure could be quietly causing damage that can 威胁你的健康. 最好的预防方法是 了解你的数字 和 making changes that matter in order to prevent or manage high blood pressure.
