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Ananya Juluri

What is BP? Why do people get high BP?

Geoffrey Gardella

BP stands for Blood Pressure. It measures the pressure of the blood pushing against the walls of your veins and arteries. Think of it like the pressure of the air in in your bicycle tyre. When you read someones blood pressure, you will see two numbers. The higher one is for when the heart is beating, while the lower one is when the heart is resting between beats. Normal pressure is generally considered around 120/70.

If the pressure gets too high, it will damage your blood vessels and organs (especially your kidneys) It also makes your heart work harder which will make it weaker over time.

[Your blood pressure can also be too low. This will cause fainting, and can also cause your organs shut down.]

The exact causes of high blood pressure aren't known, but many things can contribute to it: smoking, being overweight, lack of exercise, stress and old age among others.

If you are reading about medicine, I find the Mayo Clinic website is very helpful: https://www.mayoclinic.org/diseases-conditions/high-blood-pressure/symptoms-causes/syc-20373410

Vivekanand Vellanki

Imagine you are a farmer and you have a large farm. You have planted various crops at different locations in your farm.

Due to water shortage, you decided to build a water tank. You also made some canals to take water from the tank to the various locations in your farm. Finally, you installed a pump in the water tank.

The purpose of this pump is to take water from the water tank and push it into the canals. Water in the canals reaches the crops and you are happy.

Over time, leaves and debris start to block your canals and you realise that the pump you have is unable to pump water with enough force to clear the leaves and debris from the canals. You have to increase the power of the pump to be able to pump water with enough force so that it reaches the crops.

This is quite similar to how our circulatory system works. The heart acts as the pump; and the blood vessels act as the canals.

The force with which the heart is pumping blood into the blood vessels is blood pressure. One obvious reason why the blood pressure gets high is if the blood vessels are partly blocked. I am sure there are many more reasons why the blood pressure becomes high.

sirisha singh

BP stands for blood pressure. The heart is a muscular pump that pushes blood into the arteries. The pressure that this blood flowing in the artery exerts against the wall of the artery is called Blood pressure. The normal blood pressure is 120/80.

Blood pressure increases when the flexibility of the arterial wall reduces. This can happen due to thickening of the wall with age, due to genetic factors, smoking, sedentary lifestyle, etc.