Data Extraction And Quality Assessment
The data were collected by using a standardized and pre-piloted data extraction form that included the following categories: 1) study characteristics including authors, publication year, sample size, study design, study duration, dose, type of intervention and type of diet; 2) population information including age and baseline health status; and 3) net changes in SBP or DBP.
The quality of RCTs was evaluated by using the following criteria: 1) randomization ; 2) double blinding ; 3) reporting the number of withdrawals and reasons for withdrawal; 4) allocation concealment; and 5) generation of random numbers . RCTs scored one point for each area addressed in the study design with a possible score ranging between 0 and 5 . The studies that received a score of â¥4 were deemed to be of high quality, whereas those that received a score of <4 were considered low quality.
How Does Green Tea Help In Controlling High Blood Pressure
Green tea and its role in reducing high blood pressure is backed by science.
There are evidences that show the effectiveness of the beverage in helping the blood vessels relax.
The reason behind this effect is the polyphenol content of green tea.
The polyphenol EGCG in green tea helps in lowering high blood pressure. It does this by ensuring the elasticity of your blood vessels so that blood flows properly through them.
It also works towards preventing the formation of deposits in your arteries. As a result, the BP stays normal.
Other kinds of polyphenols present in green tea help in maintaining the right levels of the bad cholesterol in the blood so that the arteries dont get clogged up!
Polyphenols also help in reducing the production of angiotensin in the body. It is a hormone that raises the BP of the body.
Overall, polyphenols have a pivotal role to play in improving the pumping function of the heart and regulating blood flow for good cardiovascular health.
Additionally, it has been found that consuming green tea reduce your total cholesterol levels and LDL .
It is LDL that blocks your blood vessels and increases the chances of a heart attack. Therefore, it is important to keep your LDL levels in check.
In order to reap the blood-pressure-lowering benefits of green tea, studies indicate that you need to consume 5 to 6 cups a day.
However, the consumption of the beverage should not be more than this or else it can lead to adverse effects.
Heart Health And Matcha Green Tea: What You Need To Know
There may not be a wrong time to think about heart health. New research says that stress and lifestyle factors as early as childhood may predict future cardiovascular disease .
We may not be able to go back in time, but this finding underpins the growing relevance of stress reducing practices alongside regular exercise and healthy diet through all stages of life.
For those with a watchful sense, keeping up on cardio is simply a big part of that process. Not always easy, but the cutting edge of science can shed some light on what practices like wise choices in food and drink which may improve upon the time youre able to set aside for heart-health.
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How Green Tea Reduces Blood Pressure
Blood pressure can be grouped up into the three main categories below:
Normal Blood Pressure: Blood pressure readings of up to 120/80mmHg,
Normal High Blood Pressure: Blood pressure readings higher than 120/80mmHg
but lower than 140/90mmHg.
Although this isnt officially classed as high blood pressure, your risk of developing high
blood pressure with readings in this range is much greater than someone who has readings
in the normal blood pressure range.
High Blood Pressure:- Blood pressure readings higher than 140/90mmHg.
It Is High In Minerals
Hibiscus tea is very popular all over the world and many places its consumed as a medicinal tea. It is naturally low in calories and is caffeine-free. According to USDA Food Database it does contain many minerals such as calcium, iron, magnesium, phosphorous and potassium. Of course, the nutrition will also depend upon the other ingredients in the recipe.
Because hibiscus tea in itself is really tart, you often add sugar. This will naturally add to the carbohydrates and calories, but its still high in these minerals, making it a healthier drink than many others. Just keep the sugar in mind.
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What Can I Do If Im Concerned About Caffeine And High Blood Pressure
If you are at all concerned about how your caffeine habit may be affecting your heart, here are a few things you can do to help ease your mind:
To sum it up: In most cases, a cup or two of your favorite caffeinated beverage in the morning wont cause any harm. Unless your doctor told you to specifically avoid it, its not something you should lose sleep over. The high blood pressure that comes right after drinking caffeine is temporary and wont make you any more likely to develop hypertension later in life.
Now, if youll excuse me, I need to finish my large, iced, French vanilla coffee.
Can You Drink Green Tea If You Have Low Blood Pressure
A lot of people suffer from low blood pressure. The condition can make you feel dizzy without a warning. It occurs only because the amount of blood flowing to your head is not sufficient.
Mild cases of low blood pressure or hypotension can be easily dealt with using simple home remedies.
Sipping on green tea is one great way to get your low blood pressure back to normal. A single cup of green tea has 25 mg of caffeine that works really well in enhancing your bodys blood flow.
However, it is best advised to consume the tea within limits.
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Brew For Your Heart: Tea Helps Lower Blood Pressure
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Is tea the superhero of beverages?
Studies have shown that tea provides numerous health benefits, and now a new study published in the British Journal of Nutrition suggests it may help lower blood pressure.
Researchers looked at 25 randomized controlled trials to learn more about the link between tea and blood pressure. They found that people who drank tea for more than 12 weeks experienced a reduction of systolic blood pressure by 2.6 mmHg and diastolic blood pressure by 2.2 mmHg.
Lowering your blood pressure by even that small amount benefits your health.;
High blood pressure, or hypertension, can damage arteries, the heart, kidneys, eyes and other organs. Untreated, high blood pressure can lead to heart attack, atherosclerosis , stroke, kidney damage, and vision loss, says Anandh Babu Pon Velayutham, PhD, an assistant professor of nutrition at the University of Utah.
That high blood pressure can wreak such havoc on the body is made even more dangerous as most of the time it displays no symptoms.
Researchers also found that the kind of tea matters. For this study, green tea showed the most significant effects. Black tea came in second place. Previous research suggests that three to four cups of tea daily is optimal. As for caffeinated or decaf, its all the same!;
Are you brewing that tea yet?
Other Ways To Manage Blood Pressure
Blood pressure needs regular practice to keep it normal. You need to follow other healthy practices to manage blood pressure. Some of them are:
- Reduce bodyweight if you are overweight
- Quit smoking
- Eat a healthy and nutritious diet which is loaded with fibre
- Exercise regularly at least for 30 minutes
- Limit your alcohol and caffeine intake
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Teatime Can Be Good For Your Health
“There are really only three drinks that I ever recommend humans consume,” said Dr. Andrew Freeman, director of clinical cardiology and cardiovascular prevention and wellness at National Jewish Health in Denver. “The best is water, and next would be unsweetened tea and unsweetened coffee. Everything else, unfortunately, doesn’t really have any benefit, and many cause significant harm.
“It makes my job very easy when people say, ‘What should I drink?'”
Studies show tea consumption, along with a heart-healthy diet, may improve some brain function, ward off some cancers, defend against heart disease by boosting “good” cholesterol and help with weight control. It may even reduce bad breath.
A 2018 study in the Journal of the American Heart Association found that tea appears to slow the natural decrease in heart-helping HDL cholesterol as a person ages. Those findings pair well with previous research that suggests tea also reduces low-density lipoprotein, or LDL, known as “bad” cholesterol. Studies also show tea may reduce blood sugar levels and help prevent type 2 diabetes.
Black and green tea are the most popular kinds, accounting for 99% of the tea consumed in the United States. Both kinds of tea are loaded with caffeine and antioxidants called polyphenols, which are linked to lower blood pressure and better heart health. There are some slight differences; black tea, for example, contains more caffeine while green tea has a slightly better antioxidant profile.
Amazing Catechins Keep Your Heart Healthy
Green teas contain organic compounds known as polyphenols, which are a type of antioxidant. Polyphenols can be broken down into many subcategories, including a group called flavonoids, which contain catechins. Catechins are tiny powerhouse antioxidants found in green tea that destroy free radicals and improve your vascular system.
Catechins help to improve endothelium-dependent vasodialation, which means it helps to increase the size of your arteries, lowering your blood pressure. Arteries narrow with age when the endothelium lining of arteries cease to function properly. Because of this, different medical conditions such as plaque build-up can occur, which in turn raises blood pressure.
To get the most from catechins, be sure to steep your tea slightly longer than you normally would. The longer the tea steeps, the more catechins it will contain.
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Green Tea And Blood Pressure Increase Your Life By Decreasing Blood Pressure
High blood pressure is an often deadly but treatable condition that can be improved with green tea by helping sufferers reduce their systolic and diastolic numbers, maintaining alertness, and improving their overall health simply by adding a cup of green tea to their meals or any other time of the day. Organic compounds found in green tea interact in our bodies to improve heart and arterial health naturally, with medical research to confirm these claims.
What Happens To Your Body When You Drink A Lot Of Tea
Drinking tea with high catechin levels has also been affiliated with the prevention and treatment of various diseases, such as arthritis, cancer, diabetes, cardiovascular disease and neurologic and oral health, say the BioMed Research study authors. Read more: What Are the Benefits of Green Tea Vs. Black Tea? Is This an Emergency?
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Three Drinks To Lower Blood Pressure
Worried about high blood pressure? Try adding these heart-healthy drinks to your diet. Combined with regular exercise and a smart eating plan, they can help prevent and control hypertension. Here’s how.
If you’re serious about lowering your blood pressure, you probably already know to ditch high-sodium foods like deli meats, canned soups and frozen pizzas. Ditto for unhealthy fats and sugary sweets and sodas, which can pack on pounds and hike up your risk of hypertension.
But what about foods you need to eat more of? Research shows that eating plenty of fresh fruits and vegetables plus lean protein can help prevent and control high blood pressure. That’s why many folks have turned to the plant-based DASH diet, an eating plan that’s been proven in clinical trials to lower blood pressure and LDL cholesterol levels.
Pictured Recipe:Hibiscus-Pomegranate Iced Tea
Of course, what you choose to drink matters, too. Here are three refreshing beverages backed by science to help lower blood pressureplus one to avoid. Add these three to a smart diet, get started with a safe exercise program, and you’ll be on your way to better blood pressure and a healthier heart. Cheers!
Pictured Recipe:Peanut Butter & Chocolate Banana Smoothie
Pictured Recipe:Cucumber-Peach Hibiscus Agua Fresca
Hibiscus Tea Side Effects
- Lowers blood pressure: Some already have low blood pressure, and so drinking a tea that does exactly that may result in too low blood pressure.
- Pregnant women: it is not a drink for pregnant women because they often have lower blood pressure . Hibiscus may also stimulate menstruation and blood flow.
- May interfere with some medicine: as with almost everything here in life, some medicine just doesnt go with certain foods. In particular diabetes medicine, because hibiscus decrease blood sugar levels, the diabetes medicine may need to be adjusted .
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Safely Drinking Green Tea
If you enjoy drinking green tea, then you can likely drink up to 3 to 4 cups a day safely, Angelone says. If you have high blood pressure, you should check your blood pressure regularly when first getting in the habit of drinking green tea. Choosing decaf green tea can help avoid any possible effects from caffeine, she adds. NCCIH also notes that green tea manufacturers only have to report the added caffeine on green tea product labels, not what is naturally occurring.
You might also wonder if green tea could interact with blood pressure medication. If you use a type of blood pressure medication with the generic name nadolol, green tea could block the drug’s effectiveness, NCCIH notes. “It’s best to consult your physician to see if your particular medication is affected by green tea and choose decaf when possible,” Angelone advises.
Role Of Caffeine In Tea To Lower Blood Pressure
The simulant caffeine is found in traditional black, green, white, and oolong teas. The teas also contain small amounts of theophylline and theobromine, which are stimulants as well. Moreover, they belong to a class of organic compounds called xanthines, which are similar to caffeine.
Theobromine, also found in chocolate, is known to stimulate the heart; however, it also improves blood flow, dilates blood vessels, and has a mild diuretic effect. As a result, theobromine is able to reduce high blood pressure.
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What Are The Risks Associated With Drinking Green Tea
Green tea sure has a number of health benefits as we can see in the above sections. However, there are certain risks associated with the drinking of the green tea as well. It becomes highly imperative to know these disadvantages and be careful while including it in the regular diet.
The following points explain some of the risks associated with drinking green tea:
As seen above, it becomes extremely important to keep in mind the adverse health effects and the risks associated with the intake of green tea to a large extent. The above- mentioned risks makes it extremely important that we do not go overboard in our consumption of the otherwise healthy green tea.
Other Natural Ways To Reduce Blood Pressure
After discussing green tea;&;blood pressure relationship,;lets discuss other natural ways to lower your blood pressure.
1.;Lose Extra Weight
Blood pressure increases with increased weight. Obesity and overweight may also result in sleep apnea that can also raise blood pressure. Losing weight is among the effective lifestyle change that you can make to control your blood pressure. Shedding only 10 pounds can help in reducing the blood pressure.
Apart from losing weight, you should also maintain your waistline. People who carry excessive weight around their waist are at higher risk of developing high blood pressure. The risk of males is increased if their waist measures more than 40 and the risk of females is increased if their waist measure more than 35.
2.;Do Regular Exercise
Doing regular exercise at least half an hour every day can reduce your numbers by 4-9 mmHg. Consistency is important because in case you stop physical activity, your numbers will rise again.
The best kind of exercises that you can do to lower blood pressure are walking, swimming, cycling, dancing and jogging. You can also do strength training. Consult your physician about forming an exercise plan.
3.;Eat a Healthy and Well Balanced Diet
Consuming a diet which is rich in fruits, vegetables, dairy products , and whole grains and low in cholesterol and saturated fat can reduce your numbers by up to 13-14 mmHg. This type of diet is referred to as DASH diet.
4.;Reduce Intake of Sodium
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Electrical Activity In The Brain
KCNQ5 also exists in the membranes of nerves in the brain, where it helps regulate electrical activity and signal transmission.
People with a disorder called epileptic encephalopathy have a version of the channel protein that does not respond effectively to voltage changes, which leads to frequent seizures.
The study authors point out that catechins can cross the blood-brain barrier, which prevents larger molecules, including some drugs, from entering the brain.
In theory, drugs modeled on catechin molecules could, therefore, help correct the cause of epileptic encephalopathy.
Discovery of their ability to activate KCNQ5 may suggest a future mechanism to fix broken KCNQ5 channels to ameliorate brain excitability disorders stemming from their dysfunction, the researchers conclude.
What Tea Is Good For People Who Have High Blood Pressure
Taking tea may be a grand affair involving fine china, tea sandwiches and proper etiquette, or it can be as simple as adding a teabag to a mug of boiling water. However you take your tea, understand that many varieties can offer benefits if your blood pressure is too high. Relax with a cup of tea, and allow it to decrease your risk of hypertension.
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