Caffeine, a bitter stimulant found in coffee and some teas, can temporarily increase blood pressure. This effect is particularly noticeable in people who do not consume caffeine regularly.

However, other studies indicate that moderate and regular coffee consumption does not negatively impact blood pressure readings.

What is high blood pressure?

Blood pressure measures the force of blood pushing against artery walls. Arteries are the blood vessels that carry blood from the heart to other parts of the body. When blood flows with abnormally high pressure, hypertension develops.

Sustained high blood pressure can increase the risk of heart attack, chronic kidney disease, stroke, and other serious health conditions.

Moderate, regular coffee consumption (one to three cups daily) does not negatively affect blood pressure or alter the risk of high blood pressure in most people. *Bao Bao*.

Coffee and blood pressure

Several factors influence how coffee impacts blood pressure, including the amount of caffeine consumed and certain lifestyle habits:

Infrequent, intermittent coffee consumption is linked to increased blood pressure and a higher risk of high blood pressure.

Conversely, regular, moderate coffee consumption (one to three cups daily) does not negatively affect blood pressure or alter the risk of high blood pressure in most people, especially women and non-smokers.

Some research indicates minimal or no blood pressure risk when caffeine and coffee are consumed in moderation.

The exact mechanism behind why regular caffeine intake does not cause a sustained effect remains under investigation.

How much coffee is too much?

The U.S. Food and Drug Administration (FDA) recommends consuming no more than 400 mg of caffeine daily. This amount is equivalent to approximately three cups of coffee, each with a volume of about 350 ml. This intake level is not associated with dangerous or negative health effects.

Risks of caffeine

Caffeine does not harm overall health when consumed in moderation. However, consuming more than 400 mg daily can increase the risk of side effects. Individuals who do not regularly consume caffeine are also more likely to experience adverse effects when they do.

Potential risks and side effects include: rapid heartbeat, anxiety, insomnia (difficulty sleeping), nausea, vomiting, tremors, increased urination, or restlessness.

Who should avoid caffeine?

Most people can safely consume caffeine. However, certain groups should limit or completely avoid it:

- Pregnant women: Caffeine can cross the placenta to the fetus. During pregnancy, it is recommended that expectant mothers limit caffeine intake to under 200 mg per day, which is about one to two small cups of coffee.

- Individuals sensitive to caffeine: This group is prone to side effects such as restlessness, anxiety, and headaches.

- People with arrhythmias (irregular heartbeats).

- People with stomach ulcers or gastroesophageal reflux disease (GERD).

- People with severe high blood pressure.

- Those taking certain medications or supplements: These include asthma drugs, some antibiotics, and cardiovascular medications. Consult a doctor about potential interactions between your medications and caffeine.

Can coffee support heart health?

Overall, enjoying coffee in moderation (one to three cups daily) is not harmful. It may even help improve cardiovascular health and protect against disease. Moderate coffee consumption is linked to a reduced risk of heart failure and a decreased risk of death from cardiovascular disease. Researchers note that a conclusive link between coffee and the risk of coronary artery disease has not been consistently established, necessitating further research.

Tips for blood pressure control

Several scientifically proven methods exist for managing blood pressure. Try the following lifestyle and dietary tips to maintain healthy blood pressure levels:

- Get enough sleep.

- Drink black coffee, without added sugar or milk.

- Drink tea: Research shows that black tea and green tea, which contain caffeine, can improve blood pressure and cholesterol. Some studies found green tea's blood pressure-lowering effect to be more pronounced than black tea.

- Manage stress levels by dedicating time to relaxing activities such as yoga, breathing exercises, or meditation.

- Eat a diet rich in whole foods like fruits, vegetables, and whole grains, and limit salt (sodium).

- Increase dietary potassium, found in foods such as bananas, apricots, and lentils.

- Avoid smoking.

- Limit or avoid alcohol.

- Exercise regularly.

When to see a doctor?

If you experience high blood pressure due to caffeine intake, and lifestyle or dietary changes do not bring improvement, consult a healthcare professional. Your doctor will work with you to create a treatment plan. They may prescribe medication to help lower and control high blood pressure if necessary.

My Y, *Health*