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The pressure of the blood. What is actually meant by these strange figures

 

If you think to measure the blood pressure — it’s fun for those who are deeply sixty, allow you to disappoint. First, this is not a fad, but an important medical procedure. And secondly, to begin to monitor the blood pressure is best in our youth. Now we will explain why.

What is blood pressure

As you probably know, all the human body is penetrated by blood vessels. They are divided into three types: arteries, capillaries and veins.

Arteries carry the oxygenated blood from the heart, capillaries distribute it to tissues and organs, and through the veins the blood is sent back into the heart. It is the heart that leads the system in motion, acting as a pump. Thanks to him, the blood is always under a certain pressure.

Speaking of blood pressure, usually mean arterial pressure (i.e. the pressure of blood in arteries). It is significantly higher than the pressure in the capillaries and veins, and most important from the point of view of physiology. Blood pressure indicates how well the heart supplies oxygen to all our body.

The pressure of the blood. What is actually meant by these strange figures.

It is considered that normal blood pressure is 120/80 mm Hg. To decipher these numbers easily. First always indicates the systolic pressure it indicates the pressure at the moment of contraction of the ventricles of the heart — that is, when they throw out another batch of blood. In this case it is equal to 120. The systolic pressure is always higher than the second figures — the values of the diastolic pressure, which indicates the blood pressure when the ventricles are relaxed. In our example, diastolic pressure – 80. To measure blood pressure in millimeters of mercury — a tribute to tradition.

That all became clear: let’s say your heart beats with a frequency of 70 times per minute. This means that 70 times per minute it throws a portion of oxygen-rich blood into the arteries. This blood is distributed through the body under pressure, called systolic (e.g., 120 mmHg. calendar). In the moments between beats, the pressure of blood in arteries is slightly reduced. The lowest value of this pressure is called the diastolic (e.g., 80 mmHg. calendar).

Despite the fact that “perfect” pressure is considered 120/80 mm Hg. article for each person has an optimal value of blood pressure. The commonly held view about the exact boundaries of normal pressure no, but in any case, the pressure above 140/90 mm Hg. article is considered high, and the pressure of less than 90/60 mm Hg. article — too low.

How dangerous decrease in pressure

Lowering blood pressure is hypotension. This is quite a dangerous condition that usually occurs not in itself, but because of another disease.

At a pressure below 90/60 mm Hg. article is violated, the blood supply to tissues and organs, they begin to suffer from lack of oxygen. If the process time does not stop, the patient may lose consciousness or even coma.

Fortunately, such a strong decrease in blood pressure is rare. Some people have a tendency to low blood pressure, but it does not fall below 100/65 mm Hg. the article Is a physiological property of the body, which is not worry if it does not cause constant drowsiness and weakness.

The pressure of the blood. What is actually meant by these strange figures.

What is dangerous high blood pressure

The increase in blood pressure it happens more often. It is not necessarily harmful: for example, the growth pressure during heavy exercise helps with this load to handle. However, in a healthy person after such increase, the pressure quickly returns to normal. If this does not happen or the pressure rises for no apparent reason, talking about hypertension.

Sometimes hypertension is a symptom of other diseases, but in most cases it occurs “in itself”. This condition is known as hypertension. It develops in many older people and is one of the major risk factors of heart attacks, strokes and other diseases of the blood vessels and heart.

Mechanisms of occurrence of hypertension is quite complex, so will talk about them briefly. The first mechanism is associated with an increase in the amount of blood in the vessels. This may occur, for example, due to excess consumption of salt. If the blood becomes greater, the pressure in the circulatory system increases. That is why there is a lot of salt is harmful.

The second mechanism of pressure increase is associated with increased stiffness of the vessel walls. This not only leads to narrowing of their lumen, but also impairs the ability of blood vessels to adapt to fluctuating blood pressure. Imagine a thick rubber garden hose and a narrow tube made of metal — even if you increase the pressure of the water pressure in the hose will be less. Approximately the same happens with blood vessels. The sealing wall may be due to deposits of cholesterol, or under the influence of other causes.

In addition, blood pressure increases with imbalance in the nervous and endocrine systems. Not to go into details, except to say that this can result in chronic stress, disorders in the kidney, the intake of certain medications and the impact of various adverse factors (among them, by the way, is Smoking). A large role is played by heredity. Because of its dangerous consequences of persistent high blood pressure — this is something that definitely should be avoided.

Blood pressure in athletes

According to research, regular exercise help lower blood pressure at rest. This is due to the improvement of stamina, and the risk of hypertension decreases. To do this, doctors recommend at least five days per week of aerobic exercise for 30 minutes.

However, some sports involve a sharp increase in blood pressure, which creates additional risk for those who already have a propensity for hypertension. In particular, blood pressure weightlifter lifting barbell can reach 300/150 mm Hg. article and is a real test for blood vessels and heart.

Another risk factor — sports nutrition and some medications used in the training. They can also raise blood pressure, especially those that contain caffeine, steroids and growth hormone.

However, in most cases, sports affect the pressure positively. Especially if the person adheres to a sound exercise program and does not overload yourself.

The pressure of the blood. What is actually meant by these strange figures.

As to maintain the pressure in norm

All this brings us to the question — how to protect yourself from high blood pressure? Here are some useful tips.

First, from time to time, it should be measured. At a young age to control their blood pressure enough once a year (if normal). Finding himself too low or high blood pressure that persists without apparent reason, contact your doctor. Of vascular disease and heart easily prevented at an early stage, but not in advanced forms, so do not waste time.

Secondly, try to reduce the number of factors that contribute to the increase in blood pressure. Namely — quit Smoking (or better do not start), do not drink alcohol and psychoactive substances, keep yourself in shape, focusing on aerobic exercise (obesity — one “helper” hypertension), and limit consumption of salt (ideally not need to desalinate food at all).

Third, do not forget about proper nutrition. According to doctor’s recommendations to maintain the normal pressure you need to eat more vegetables, low-fat dairy products (perfect also soy milk), food rich in fiber, all kinds of cereals and grains. What definitely need to be careful of is food rich in cholesterol and carbohydrates (a typical example — fast food). In addition, for the cardiovascular system are very useful Mediterranean diet.

If these methods do not help to take your blood pressure under control without drugs can not do. In addition, you will need to be screened to identify the reasons why your blood pressure may deviate from the norm. To address this need a therapist or cardiologist.

Summing up, repeat the most important thing: even at the age of 20 useful to know what is blood pressure and how to avoid its increase. Sports in this case — a great helper, along with the healthy diet and avoiding harmful habits. To control the pressure in youth — the best way to worry less about him in old age and longer enjoy an active and full life. What we will and wish.