How does coffee affect a person's blood pressure?
Content
How does coffee affect blood pressure: does it increase or decrease, is it possible to drink coffee with hypertension, or is it better to give preference to tea? The answers to these questions should be known to those who cannot imagine life without this black, invigorating drink.
To establish its effect on the human body, scientists from different countries have conducted and continue to conduct numerous studies and tests. Every year new varieties appear, this drink is becoming more and more popular. Who can drink coffee, and for whom is it considered harmful?
How coffee affects blood pressure
Coffee, blood pressure, blood vessels, heart... Their interaction is the subject of constant discussion. Coffee lovers often face various myths and prohibitions, the reliability of which in most cases is not confirmed.
The effect of the drink on the human body is determined by the composition.
The main constituent element is caffeine, which acts in this way:
- stimulates the activity of the nervous system;
- improves blood circulation;
- has a slight diuretic effect;
- contributes to the improvement of metabolic processes;
- increases efficiency;
- fills the body with energy.
When caffeine enters the body, vasospasm occurs, which is why blood pressure rises. Caffeine inhibits the activity of adenosine, a sleep stimulating substance. It is adenosine that prevents the body from waking up, cheer up. And caffeine also promotes the production of adrenaline, which also invigorates. The active substance makes the heart work harder, activates the activity of the body.
Does coffee raise or lower blood pressure? Definitely, it increases if it is natural, good coffee. However, the drink affects people differently depending on age, health status.
It is recommended to drink it for people who have low blood pressure. And for those who have it elevated, it is better to use green or herbal tea.
Can coffee be given to hypertensive patients?
What if you have high blood pressure, but you have no idea how to start the day without a cup of aromatic coffee? Maybe switch to tea? Of course, no tea can replace an invigorating drink. Doctors unequivocally recommend that you stop drinking caffeinated drinks or at least reduce their amount to a minimum if you have problems with pressure. You can’t drink coffee for those who have already been diagnosed with hypertension, because the drink affects this category of people more expressively.
If you have high blood pressure from time to time or it is slightly elevated, you can drink it, adhering to certain recommendations.
- You can drink no more than three cups (300 mg) of not very strong coffee per day.
- It is better to give preference to natural ground than soluble. Ground acts softer, moreover, it is characterized by expressive taste and aromatic qualities. Soluble is not so tasty, but after it there is a pronounced lasting effect.
- The optimal time for coffee drinking is in the morning, in the first half of the day. You can not drink a drink before going to bed, because insomnia will disturb. At night, it is more useful to drink herbal tea with a relaxing, calming effect.
- It is harmful for the body if coffee is offered instead of rest.
An increased dose of caffeine negatively affects the body of hypertensive patients. The substance stimulates brain activity, makes the heart work faster.
However, in the course of research by American scientists, a phenomenon was recorded that, from a scientific point of view, still cannot be clearly explained. It turns out that coffee can lower blood pressure. In 15% of the subjects, the indicators after drinking several cups of the drink decreased. Does the drink really lower blood pressure? How do scientists explain this? The fact is that with regular, but moderate consumption of the drink, the human body simply gets used to it and no longer reacts to coffee, blood pressure can remain unchanged or decrease by several units.
Green coffee
Recently, green tea and coffee have gained popularity. Manufacturers claim that this tool promotes rapid weight loss, others talk about the benefits of green grains for people with low blood pressure. Useful properties are that the drink stabilizes the level of glucose in the blood, improves metabolic processes in the body. It can be drunk with diabetes, the presence of problems with being overweight. Like regular coffee, green coffee raises blood pressure, so for people who have it high, the drink is contraindicated, it is better to replace it with tea.
The effect of green coffee on the human body with low blood pressure is as follows:
- stabilization of the state of the coronary vessels;
- stimulation of the brain centers responsible for breathing and movement;
- stimulation of the heart;
- acceleration of blood circulation;
- improvement of the cardiovascular system as a whole.
In moderate doses, both black and green coffee (as well as tea) are beneficial for the body of people who have low or normal blood pressure. The drink increases efficiency, energizes, awakens. But you can not abuse it, as this can lead to serious malfunctions in the body. As for hypertensive patients, tea is considered more preferable for them.
Beneficial features
Discussions about the harmful and beneficial effects of coffee on the human body do not subside. Research and testing are being carried out, each time new data appear on how this drink affects the body as a whole and on all systems separately.
It can definitely be said that it is useful for hypotension, as it can increase blood pressure, it is also useful for emotional or physical exhaustion, because it helps to activate the body.
- Two or three cups a day help to increase resistance to stress, the growth of mental abilities.
- The drink significantly reduces the risk of developing cancer, Parkinson's disease, cirrhosis of the liver, heart attack, arterial hypertension.
- It is useful for men, because it contributes to the establishment of reproductive function, increases sperm motility.
- Normalizes digestion. The drink helps to lose weight, as it forces the body to use fat reserves.
If you like to drink this invigorating, aromatic drink, you do not have problems with pressure, do not worry that drinking it can be bad for your health. Of course, everything needs a measure. Just three cups a day is enough to feel fresh and full of energy. From tea, of course, this effect will not.
Coffee is, first of all, a natural product, a natural energy drink. It has a rich composition, because it contains not only caffeine, but also other substances that act on the body in different ways. Soluble is considered harmful, because for its preparation, coffee beans must be subjected to special processing. As for decaffeinated coffee, this can be interpreted from different angles. It is believed that it can be drunk by people with high blood pressure. But to extract the caffeine, you need to use chemicals that can cause even more harm.
Harm coffee
The tool affects each organism individually. If you think a drink might be harmful, drink tea. Not only useful, but also harmful properties are proven by scientific research. But it is worth considering that it only harms if you drink more than the recommended dose per day. Five cups is already too much. The norm is 2 or 3 cups a day.
Drinking coffee in high doses over a long period can lead to the following effects:
- depletion of nerve cells;
- sleep disturbance;
- increased heart rate;
- leaching of beneficial microelements from the body;
- addictive.
You can not drink coffee to children, because the drink slows down the growth and development of the body. It should not be used by pregnant women, as the risk of abortion and fetal developmental disorders increases.
Coffee is not recommended to drink with high blood pressure, because it helps to increase performance.
But the reaction of each organism to caffeine is individual.
There is evidence that in some cases, the drink, on the contrary, reduces pressure. To protect yourself from the negative consequences caused by drinking coffee, you should drink it in moderation, choose a high-quality, natural product, brew it correctly, and then everything will be in order not only with pressure, but with the whole body.