Toronto: Restricting the drinking of wine to only one glass a day may offer better health benefits than drinking more, a new study by Canadian scientists has shown.
The first drink may relax blood vessels, reduce the amount of work the heart has to do and lower the risk of heart disease.
But the study done by researchers at the University of Toronto found that the health benefits of red wine or other alcoholic drinks not only stop after one glass, it may also have adverse effects on health, reported the online edition of Daily Mail.
The second glass of wine may increase the risk of high blood pressure, coronary artery disease and heart failure, they said.
In the latest study, scientists gave healthy, non-smoking adults either a 120 ml glass of wine, a 44 ml shot of spirits or water at random.
One alcoholic drink had no adverse effect on heart rate or blood pressure, the scientists found. But two drinks increased heart rate and reduced the ability of arteries to expand to handle the increased blood flow.
Past studies have shown that moderate drinking can protect against heart disease. Some studies have also reported the specific benefits of red wine.