The researchers studied 37,514 people in The Netherlands for about thirteen years.
The specifics of their study were published in the American Heart Association (AHA) journal Arteriosclerosis, Thrombosis and Vascular Biology.
The title of the study is: 'Tea and Coffee Consumption and Cardiovascular Morbidity and Mortality.
It was authored by: J. Margot de Koning Gans; Cuno S.P.M. Uiterwaal; Yvonne T. van der Schouw; Jolanda M.A. Boer; Diederick E. Grobbee; W. M. Monique Verschuren; and Joline W.J. Beulens.
The scientists are associated with at least one of the following two organizations: the Julius Center for Health Sciences and Primary Care (University Medical Center Utrecht, Utrecht, the Netherlands) and the National Institute for Public Health and the Environment (Bilthoven, the Netherlands).
Page two concludes with the major conclusions of the study.
'¢ People who drank three to six cups of tea per day had a 45% lower risk of death from heart disease than people who drank less than one cup of tea a day.
'¢ Drinking more than six cups of tea a day was associated with a 36% lower risk of heart disease, compared to drinking less than one cup.
'¢ People who drank more than two, but no more than four, cups of coffee a day had about a 20% lower risk of heart disease than people who drank more or less coffee or no coffee at all.
'¢ Moderate coffee consumption was associated with a slight, but not statistically significant, reduction in death from heart disease, but neither coffee nor tea affected stroke risk.
According to their paper, the researchers concluded: 'High tea consumption is associated with a reduced risk of CHD mortality. Our results suggest a slight risk reduction for CHD mortality with moderate coffee consumption and strengthen the evidence on the lower risk of CHD with coffee and tea consumption.'
Please read the before-mentioned WebMD article for further details of the study.