“The regular consumption of tea is associated with a decrease of cardiovascular disease and all-cause mortality,” explains the first author of the study
Xinyan Wang of the chinese Academy of medical sciences Beijing. "The health benefits are greater for the green tea and for anyone who is a drinker habitual of this drink for a long time”. The research
The study involved almost 11 thousand participants who had not had any experience of heart attack, stroke or cancer and who were divided into two groups: heavy drinkers of tea (three or more times a week) and those who do not drinks never or less than three times a week. All were followed for more than seven years. The consumption of tea was associated with a greater expectancy of life in good health. For example, the data showed that the older tea drinkers develop coronary heart disease and heart attack almost two years later and live 1,26 years longer than those who drink rarely, or never, the drink. Not only that, regular consumers of tea have a lower risk of 20% of developing heart disease and stroke, 22% of a heart attack, fatal and 15% of all-cause mortality. The second analysis over the years
To confirm the beneficial effects of tea, was analyzed in a subgroup of 14 thousand people with a rating at the distance of five years from the beginning of the first search. It is seen that those who have maintained the habit of tea drinking in both studies, had a lower risk of 39% of having an illness due to heart disease and stroke, 56% of an attack fatal to the heart, and 29% of all-cause mortality. The power of the polyphenols.
what should this protection? According to the lead author of the study,
Dongfeng Gu of the chinese Academy of medical Sciences, would be to the credit of the polyphenols, which are the main bioactive components of tea and which, however, are not stored by the body in the long run. For this, according to the researchers, the health benefits were more evident in heavy drinkers: “This means - ends Oj - that in order to have an effect cardioprotettivo you need to prolonged intake in the time of tea”. Green tea is more protective than the black one
Not all of the tea, however, are the same and the analysis has led to the emergence of such as the green tea is linked with a 25% risk in less than cardiovascular disease and all-cause mortality. There were no data, instead, on the black tea. An effect due to two factors. In the first place, the green tea is particularly rich in polyphenols that protect against cardiovascular disease and its risk factors including hypertension and cholesterol. In addition, the black tea is a fermented product and during this process the polyphenols are oxidised and may lose their protective effect. In addition, often the black tea is served with milk and some previous research had shown that this could counteract the beneficial effects of tea on vascular functions. Men are more secure than women?
The researchers also analyzed the data by gender, to discover that the protective effect among heavy drinkers of tea was greater and more consistent for men than women but this could be due to the fact that 48% of men drink tea compared to just 20% of women and also women have a lower incidence of heart disease mortality.
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