People often take into account the indicators upper pressure tonometer thinking that the main marker of hypertension. However, sometimes it is more important to pay attention to the second digit.
The article considers theoretical bases of lower pressure, which means the increase and decrease parameters.
The blood pressure in the vessels going from the heart to the organs (arteries), called blood pressure (BP). Numeric blood pressure values are much higher than blood pressure in the vessels coming from the organs and tissues to the heart in veins and capillaries.
Which means blood pressure in humans?
The value of the arterial pressure denotes two numeric values. The norm accepted in the numbers 120/80 mm Hg to the brachial artery. The place was chosen not accidentally, it is easier just to measure the pressure with a tonometer.
Blood pressure values fluctuate up or down during the day for 10 mm of mercury. article From easily excitable, emotional people figures daily fluctuation above. In the process of growing up the numerical value of the normal pressure rise. The sharp increase in AD is observed in adolescents. In this age period may increase the upper value of 12 units. Large and higher children compared with their peers, have the blood pressure parameters above the age norm.
For understanding what the HELL man, it is advisable to list the factors that determine this figure:
- systolic volume of the heart means, what amount of blood the ventricle ejects in a single cut;
- the speed of the blood ejection;
- the frequency and rhythm of heartbeat;
- blood volume and its properties;
Since vascular tone is regulated by chemicals and the autonomic nervous system, lower blood pressure means, how neurohumoral regulation is carried out correctly.
The blood not only nourishes our organs and tissues with oxygen, but also removes the products of decomposition, provides thermoregulation. How well the heart performs is the supply – that show the values of blood pressure, including the bottom.
HELL – priority indicator of the functioning of the body. Normal numeric indexes HELL individual. Pressure measurement, observation for a period of time behind the fluctuations of values is one of the main methods of diagnostics of diseases, for example:
Values normal blood pressure dependent on heredity, age. The average numerical variation is in the range of 140/90 mm Hg. article to 90/60 mm Hg. article Metrics beyond these limits, is a sign of hemodynamic instability and heart and blood vessels.
Not always a deviation from the norm indicates hypertension or hypotension. The pressure is affected by psycho-physical stress, a strong stress, overheating or overcooling of the body, as well as taking stimulants or energy drinks.
What is the “heart” and “kidney”?
“Hearty” HELL means the pressure when the heart that gives the forward impetus of the body. The phase of contraction of the heart is called “systole”, so the top pressure correctly called systolic.
“Renal”, or lower, a blood pressure, means the pressure in the vessels during times of maximum relaxation of the heart, before the new cuts. The relaxation phase of the heart is called “diastole”, therefore, the lower the pressure properly be called diastolic.
Sports medicine boys had discovered the phenomenon of endless tone that occurs when the big physical activity. The essence of the phenomenon – the inability to determine the level of diastolic blood pressure, blood pressure monitor actually shows 0 mm of mercury. article
However, among physicians by the terms “heart” or “kidney” was referred to the upper and lower rates of blood pressure and types of hypertension:
- heart hypertension;
- renal arterial hypertension.
The differences in the types of hypertension associated with increasing pressure. If in the first case, this pathology of the cardiovascular system, in the second, hypertension occurs because of a violation of the withdrawal of fluids from the body, leading to increased volume and, consequently, to increased pressure on the walls of blood vessels.
Since the human body contains 60-70% liquid, without circulation of fluid in the body is impossible metabolism. Blood is a core component for the functioning of this biological mechanism, why it is so important for life. The kidneys, the blood flowing through itself, act as filter, regulate water-salt balance and eliminate toxins from the blood along with the urine.
What does diastolic measure?
Numbers lower blood pressure indicate the degree of resistance of the peripheral arteries, the vascular permeability for blood. This is basically what mean diastolic value.
For the objective evaluation index, it is mapped to a numeric value systolic blood pressure. The norm adopted is the difference in 40 mm of mercury. the article called pulse pressure. That is the difference we perceive in the form of pulse (felt pulsing).
If the magnitude of the pulse pressure increases, but diastolic numeric value is in the normal range, it’s likely a problem with the circulatory system. In the fall of the pulse pressure, the problem is likely the kidneys and adrenal glands. However, this initial markers. The exact cause of what this means, if the lower pressure, and with it the pulse the difference is rejected, sets specialist.
Responsible for what?
Diastolic (lower) pressure is responsible for the tonus of peripheral vessels in humans. If it for a long time higher than normal, this increases the risk of heart attack or stroke. At low values worsens oxygen supply of organs and tissues. Dizziness, fainting when a sudden increase in physical activity. Regardless of, what does the lower blood pressure, it should be noted that the persistence of low values in the long term is the cause of various diseases.
What says if rejected?
Normal digits of the lower HELL located in the range from 60 to 90 mm of mercury. article, If the figures for normal blood pressure has changed in the big or smaller side, it indicates that there is a good reason to make an appointment with a therapist.
What it depends on?
A low diastolic rate of a person depends on:
- renin – renal hormone that regulates vascular tone;
- the presence of bleeding;
- prolonged starvation, dehydration, reduces systolic and diastolic blood pressure;
- severe lung disease (tuberculosis);
- allergic reactions, anaphylactic shock;
- stress, emotional state, fatigue.
High blood increased in the phase of relaxation of the heart depends on:
- the high tone or narrowing of renal arteries;
- kidney disease (glomerulonephritis, pyelonephritis);
- of body weight higher than normal;
- disorders of the myocardium;
- of diabetes;
- thyroid dysfunction,
- high or low hormone levels in the blood;
- the degree of arterial hypertension.
A significant increase in bottom pressure increases the risk of stroke or myocardial infarction.
Often to quickly reduce blood pressure people take an extra dose of medicine prescribed by a doctor. This is a serious error. Modern drugs are designed for long (prolonged) effect with a gradual decrease in blood pressure.
What is the impact?
Long-lasting abnormal lower HELL affects the appearance:
- aching headache, dizziness;
- drowsiness, prostration, loss of memory and concentration;
- sweating, chills, edema of the lower extremities;
- cardiac arrhythmia and unpleasant sensations in the heart area.
Noticing one, and especially two of the above signs, measure blood pressure, and in the case of low numbers, be sure to consult your doctor.
During pregnancy you need to carefully monitor diastolic blood pressure. As low rates have a negative impact on the quality of the exchange of substances between the fetus and the mother, increases the risk of delayed child development.
- Hypertension caused by high bottom pressure (renal), occurs on the order of less than cardiac hypertension.
- More often the low values of bottom pressure, are the cause of hypotension.
- Our AD depends on lifestyle, diet and daily routine. There are many cases of people changing these factors normalize their blood pressure.
- Before doing the mode change, it is necessary to accurately determine the cause of disorders of the lower blood pressure. It can only know the doctor, after a thorough diagnosis.
5 thoughts on “Is responsible for what and that means “lower” blood pressure in humans?”
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