One coffee and four cups of green tea a day

When it comes to choosing between tea or coffee, the best answer may be to opt for both.
Scientists have found that individuals who enjoy a daily cup of coffee were 20 per cent less likely to have a stroke compared to those who shunned the drink.
And those that drank at least four cups of green tea a day also benefitted from a similarly reduced stroke risk. But as the popular beverages are thought to protect against the often fatal condition in different ways, the study suggests regularly drinking both could provide the greatest benefit.
Researchers looked at the drinking habits of almost 84,000 Japanese adults over a 13-year period.
'This is the first large-scale study to examine the combined effects of both green tea and coffee on stroke risks,' said lead author Dr Yoshihiro Kokubo, from Japan's National Cerebral and Cardiovascular Centre'You may make a small but positive lifestyle change to help lower the risk of stroke by adding daily green tea to your diet.' 
The study, published in American Heart Association's journal Stroke, found that the greater amounts of coffee or green tea consumed, the lower their stroke risk. The report found that 'combination of higher green tea and coffee consumptions contributed to the reduced risk of stroke as an interaction effect for each other.'  

Source  - Daily Mail