Tea and coffee
have been linked to several adverse
effects. Therefore, it has been advised
to restrict their use. A recent study
presented to the European Society of Hypertension
suggests that these beverages
may not contribute to an increase in blood pressure, and may actually help to
The findings are based on a ten-year long research
study by the Preventive and Clinical Investigations Centre in Paris. It was conducted on 180,000 people who were
in the ages between 16 and 95 years.
Each person was asked to record their tea and coffee intake in terms of
number of cups consumed, and their blood pressures were monitored during the
period. The 'tea' referred to all types
of tea like black, green and herbal.
The study found that heavy drinkers of tea and
coffee had the lowest blood pressure readings.
Besides, their heart rate and pulse pressure were also low compared to
others who did not drink these beverages. In fact, those who did not drink
these beverages at all had the highest blood pressure, pulse pressure and heart
The results of the study contradict previous beliefs
that caffeine and tea, being stimulants can increase blood pressure. The researchers feel that this reduction in
blood pressure could be due to the relaxant effects of some compounds in these
beverages on blood vessels.
Though researchers feel that the finding of the study should not be used
to encourage people to drink more tea or coffee, it may not be necessary to
restrict their use in patients with high blood pressure. It should also be noted that the study has
found an association between these beverages and blood pressure; however, they
have not proved that they reduce blood pressure.