Does coffee raise blood pressure?

mayoclinic.org - Caffeine: How does it affect blood pressure? - Mayo Clinic

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How does caffeine affect blood pressure? Answer From Francisco Lopez-Jimenez, M.D.

Caffeine may cause a short, but dramatic increase in your blood pressure, even if you don't have high blood pressure. It's unclear what causes this spike in blood pressure. The blood pressure response to caffeine differs from person to person. Some researchers believe that caffeine could block a hormone that helps keep your arteries widened. Others think that caffeine causes your adrenal glands to release more adrenaline, which causes your blood pressure to increase. Some people who regularly drink caffeinated beverages have a higher average blood pressure than do those who drink none. Others who regularly drink caffeinated beverages develop a tolerance to caffeine. As a result, caffeine doesn't have a long-term effect on their blood pressure. If you have high blood pressure, ask your doctor whether you should limit or stop drinking caffeinated beverages. The U.S. Food and Drug Administration says 400 milligrams a day of caffeine is generally safe for most people. However, if you're concerned about caffeine's effect on your blood pressure, try limiting the amount of caffeine you drink to 200 milligrams a day — about the same amount as is generally in two 8-ounce (237-milliliter) cups of brewed coffee. Keep in mind that the amount of caffeine in coffee, energy drinks and other beverages varies by brand and method of preparation. Also, if you have high blood pressure, avoid caffeine right before activities that naturally increase your blood pressure, such as exercise, weightlifting or hard physical labor. To see if caffeine might be raising your blood pressure, check your blood pressure before drinking a cup of coffee or other caffeinated beverage and again 30 to 120 minutes afterward. If your blood pressure increases by about 5 to 10 points, you may be sensitive to the blood pressure raising effects of caffeine. If you plan to cut back on caffeine, do so gradually over several days to a week to avoid withdrawal headaches.

With Francisco Lopez-Jimenez, M.D.

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How can I lower my BP in 5 minutes?

medicinenet.com - How Can I Lower My Blood Pressure in Minutes? - MedicineNet

What is high blood pressure?

If your blood pressure is elevated and you want to see an immediate change, lie down and take deep breaths. This is how you lower your blood pressure within minutes, helping to slow your heart rate and decrease your blood pressure. A blood pressure reading is taken to measure how forcefully your blood flows through your circulatory system. There are two numbers associated with blood pressure: Systolic: This is the higher number and measures blood pressure during a heartbeat. Diastolic: This is the lower number and measures blood pressure in between heartbeats. Normal blood pressure for you may be different than another person’s average blood pressure. You may naturally have blood pressure that averages higher or lower. However, blood pressure that is above or below your normal range can result in negative health problems. Your blood pressure is considered normal with a reading of 120/80. It is considered low once it falls to 90/60 or lower. High blood pressure is measured at varying levels:

Elevated: 120-129/80 or less

Hypertension stage 1: 130-139/80-89

Hypertension stage 2: 140 or higher/90 or higher

Hypertension stage 3: Higher than 180/higher than 120

Many people with high blood pressure may not even know they have it. This is why it’s often called the silent killer. You can occasionally have headaches but other symptoms are rare.

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