Caffine Myths #4 - Caffeine heightens hypertension risk True or False?

Myth #4: Caffeine heightens hypertension risk.True and false:  
Caffeine does cause a small, short-term boost in blood pressure, but it’s nothing serious, Messerli says, and has no lingering health effect.

In fact, a Harvard University Medical School study of 155,000 female nurses found no link between a decade of coffee drinking – with or without caffeine – and an increased risk of hypertension. Caffeinated colas did increase the risk, but that could be due to the sugar and other ingredients in sodas, not the caffeine. Tea drinking received mixed results.

As for men, a 33-year-long Johns Hopkins University study of more than 1,000 participants revealed that coffee played almost no role in hypertension risk.