How does green tea affect blood pressure?

Green tea is popular around the world, but the question remains: Does this drink increase or decrease the pressure? It is known that it has a tonic effect, contains antioxidants - catechins, which strengthen the blood vessels of the body. This drink also contains caffeine, which increases the pressure( see Effect of coffee on pressure).How does green tea affect pressure in hypotension and hypertension?

Properties of tea

Drink is a dried, unfermented, unlike black tea, leaves of the same plant. It contains biologically active substances that affect the entire body. The effect of green tea on the pressure is due to the biologically active substances entering it, which have different effects on blood vessels and the heart.

The main effects of green tea:

1. Tones up the nervous system.
2. Prevents peroxide oxidation of fats.
3. Has a diuretic effect.
4. Contains caffeine, which increases blood pressure and heart palpitations.

Does green tea reduce or increase blood pressure? It is found that the leaves contain many polyphenolic antioxidants that protect the human body from free radical oxidation and cell damage. Polyphenols, also called catechins, interfere with the inflammatory processes of the arteries of the brain and heart. As is known, atherosclerotic lesions( see Vascular atherosclerosis) associated with hypertensive disease are accompanied by inflammation in the wall of the vessel. Catechins of green tea protect the inner shell of arteries from oxidation and the development of an atherosclerotic process.

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Polyphenols reduce the permeability of capillaries, neutralizing the harmful effects of homocysteine, which affects the cardiovascular system. The edema of tissues, the viscosity of blood decreases, which has a beneficial effect on the activity of the heart and circulatory system. This action, due to the effects of polyphenols, helps to reduce pressure.

At the same time, the drink has a diuretic effect. A drug with this effect is used to reduce blood pressure in patients with hypertension, symptomatic or essential - hypertensive disease. Tea removes excess fluid from the body, contributing to lowering blood pressure. This contributes to some improvement in the condition of people suffering from hypertension.

In people prone to hypotension( see Arterial hypotension), such a tea effect can cause a sharp drop in pressure. But the opposite effect is possible. Some hypotonic drugs use a drink to increase pressure with constant weakness and dizziness.

However, green tea raises the pressure due to the content of caffeine in it, the level of which in this drink is higher than in coffee. Which tea raises the pressure: black or green? Both drinks are able to increase pressure due to caffeine. This substance activates the work of the heart.

At the same time, caffeine relaxes the smooth musculature of the vessels, reducing the overall peripheral resistance and, accordingly, blood pressure. Effects can level each other, and the performance of the cardiovascular system in this case does not change.

Individual reaction to green tea

Does green tea increase blood pressure? On hypertensive patients and hypotonic drink can have a different effect. People prone to increased pressure, react more strongly to substances that increase blood pressure, such as caffeine. In some cases, hypertensive green tea can cause tachycardia and headaches. However, more often with arterial hypertension( symptomatic and essential), this drink reduces pressure due to the action of its components:

• caffeine relaxes blood vessels, whereas in hypertension they narrow and peripheral resistance increases;
• diuretic action produces an antihypertensive effect;
• polyphenols help reduce blood viscosity and ease heart function.

Hypertension

Green tea can help with vegetative-vascular( neurocirculatory) dystonia according to the hypertonic type. In the case of hypertensive disease with high digits on the tonometer, the drink is unlikely to help eliminate symptoms such as headache and fever, nausea. Therefore, the use of the drink will not replace the drug treatment. In the treatment of hypertension and symptomatic hypertension include beta-blockers, calcium antagonists, other diuretics( Indapamide, Furosemide, Orthosiphon infusion, Veroshpiron).

When drinking green tea and diuretics, one should not forget about the use of potassium in Asparkam, Panangin preparations. Deficiency of potassium, created by diuretics, removing minerals and water, with an excess of caffeine weakens the heart muscle. Therefore, there are electrolyte disorders affecting the development of arrhythmias and weakness due to the abuse of caffeine-containing beverages.

Hypotonia

People prone to hypotension react to the action of green tea in different ways. In some people, he increases the pressure. In another group of patients suffering from low blood pressure, weather sensitivity and weather-related hypotension are aggravated. The diuretic effect, combined with the vasodilating effect of caffeine, leads to the excretion of liquid and sodium ions, which leads to a decrease in pressure.

People prone to hypotonic type of vegetative-vascular dystonia and other diseases leading to a decrease in blood pressure should take measures to increase it. For this, you need to eat salty foods and enough water to increase the volume of circulating blood. Caffeine-containing drinks and products: cola, coffee, green tea, chocolate also contribute to an increase in digits on the blood pressure monitor.

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Does green tea raise blood pressure? Green tea can have different effects on the cardiovascular system. At present, there is no conclusive evidence of the effect of this drink on blood pressure.