How to drink water scientifically for hypertensive patients

As the weather gets hotter, sweating more and more, the body is essential to replenish water. Some people think that drinking more water can dilute the blood, reduce blood viscosity, flush out the salt in the body, the diet will not need to control salt, so drink more water is good. Other people think that more water will make the blood expansion, blood pressure, etc., very cautious about drinking water. In the end, how to drink water for hypertensive patients, we listen to what experts say.

8 glasses of water a day, applicable to hypertensive patients?

Under normal circumstances, the human body urinates 500 to 2000ml, which means that the kidneys have great potential in regulating the balance of water. Therefore, with good kidney function, simply drinking more water will not cause changes in blood volume and will not affect blood pressure. Therefore, hypertensive patients on the basis of salt restriction and ordinary people are equally suitable for 8 glasses of water per day. However, if excessive drinking such as mental drinking, continuous heavy drinking or acute renal insufficiency, water intake exceeds the drainage capacity of the kidneys, water toxicity will occur, not only will there be an increase in blood pressure will also cause vital organ failure, both healthy people or hypertensive patients should avoid the emergence of this situation.

The claim that "drinking water can lower blood pressure" is not scientific

Reasonable hydration is important for hypertensive patients, because too little water intake will cause blood concentration, increased viscosity, platelet aggregation, easily induced thrombosis leading to cerebral thrombosis and myocardial infarction. From this point of view, "drinking water therapy" is really beneficial for hypertensive patients. It must be stressed that: drinking water can never replace drug therapy. Drinking water can be said to be a means of health care, does not have the efficacy of antihypertensive drugs, with modern drug development and advances in pharmaceutical technology, many antihypertensive drugs in the lowering of blood pressure at the same time, many tissues and organs have different protective effects on the human body, which is also the efficacy of drinking water can not achieve.

Hypertension patients, after drinking the right amount of water, but also limit salt

Treatment of hypertension, in addition to taking antihypertensive drugs, limiting sodium intake is also extremely important. Some studies have confirmed that a reduction in daily salt intake from 10.5 grams to 4.7-5.8 grams can reduce blood pressure by an average of 4-6 mm Hg. The latest hypertension guidelines recommend an optimal daily salt intake of 3.8 grams, but such a low-salt diet cannot be tolerated for a long time, so a daily intake of no more than 5 grams of salt is generally preferred. Recent studies have proven that strict sodium intake not only has a certain effect on reducing blood pressure, but can even reduce the dosage of antihypertensive drugs. On the other hand, it is also unscientific to restrict water intake in hypertensive patients for fear of impaired kidney function. Indeed, the long-term slow progress of hypertension can cause renal atherosclerosis, kidney function damage, and even develop into renal failure, and the damage to kidney function will further aggravate hypertension, into a vicious circle. In fact, active and steady control of blood pressure in the normal range is the key to avoid hypertensive kidney damage.

Will drinking more water affect the efficacy of antihypertensive drugs?

At present, most commonly used antihypertensive drugs are water-soluble oral tablets, which are absorbed through the digestive tract and have good hydrophilicity and can diffuse freely through biofilm pores, so they are easily absorbed. The kidneys will discharge the excess water through their own regulation mechanism, which will not increase the blood volume and naturally will not affect the efficacy due to the decrease of blood concentration. Moreover, we recommend patients to take long-acting controlled-release antihypertensive tablets, which not only reduce the number of doses, but also can release the drug slowly and at a constant rate within 24 hours to maintain the effective blood concentration and play a therapeutic role.

The principle of drinking water for hypertension patients

In summary, salt restriction is the key for patients with hypertension, on the basis of strictly limiting sodium intake water restriction can not be too strict, drinking 1500-2000 ml of water daily, not more than 250 ml each time. Hypertensive patients are suitable for drinking water rich in minerals such as calcium and magnesium, such as tap water and mineral water, because some studies have shown that the intake of adequate amounts of calcium and magnesium can effectively prevent atherosclerosis, but also can make excessive blood pressure to normal. Pure water is not recommended for people with hypertension due to the removal of substances that are beneficial to the body. It is recommended to drink 1 glass in the morning on an empty stomach, 1 glass at night before going to bed, and at other times as appropriate, to develop the habit of actively drinking water. Patients with hypertension should avoid waiting until they are thirsty to drink water and avoid binge drinking to prevent a sudden increase in circulatory burden.