While there is often concern about the links between caffeine and heart health, a moderate amount of tea or coffee (four or five cups a day) should be fine for most people. Research shows that this level of caffeine intake shouldn't be detrimental to your heart health, affect your cholesterol levels or heart rhythm.

Does caffeine cause heart problems?

Overall, caffeine doesn't seem to increase the risk of heart disease or stroke in most people. However, it has been shown to raise blood pressure in several studies due to its stimulatory effect on the nervous system ( 33 , 34 , 35 , 36 ).

Does caffeine stress your heart?

In moderate doses caffeine has mainly positive effects for most people. But it increases production of cortisol, which can lead to health problems including anxiety, weight gain and heart disease.

What does caffeine do to your arteries?

Caffeine acutely increases blood pressure and peripheral vascular resistance, in part because of sympathetic stimulation. Its effects on large artery properties are largely unknown.

Can caffeine cause heart palpitations?

However, some people are more sensitive to caffeine than others, and, for some, caffeine can trigger heart palpitations (the sensation of feeling your heart beating, whether that is normally, quickly, slowly or irregularly; some people describe feeling their heart pounding or fluttering).

How long does caffeine affect your heart rate?

As your heart beats faster — accelerating by about three beats per minute — your blood flow speeds up, too. The increase in your heart rate from caffeine can take effect in as soon as 15 minutes and take approximately six hours to wear off.

Does caffeine cause heart palpitations?

However, some people are more sensitive to caffeine than others, and, for some, caffeine can trigger heart palpitations (the sensation of feeling your heart beating, whether that is normally, quickly, slowly or irregularly; some people describe feeling their heart pounding or fluttering).

Is caffeine bad for 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.