11. Coffee Does Not Cause Heart Disease and May Lower The Risk of Stroke
It is often claimed that caffeine can increase blood pressure.
This is true, but the effect is small (3-4 mm/Hg) and usually goes away if you drink coffee regularly (46,47).
However, the effect may persist in some people, so keep that in mind if you have elevated blood pressure (48, 49).
That being said, the studies do NOT support the myth that coffee raises the risk of heart disease (50, 51).
In fact, there is some evidence that women who drink coffee have a reducedrisk of heart disease (52).
Some studies also show that coffee drinkers have a 20% lower risk of stroke (53, 54).
Bottom Line: Coffee may cause mild increases in blood pressure, which usually diminish over time. Coffee drinkers do not have an increased risk of heart disease, but a slightly lower risk of stroke.
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