What can be inferred from the news?

Can green tea fight cancer? Green tea is one of the most popular drinks in Asia. It’s different from most American teas because its leaves are raw, not fermented. Japanese scientists have discovered that green tea can lower cholesterol and stop the growth of some cancer, with a substance that attacks cancer-producing free radicals. Free radicals are in every body, but too many can stimulate cancer growth, green tea pumps up the immune system to make the charge and break apart cancer cells. The Japanese drink several cups of green tea a day and have very low levels of lung cancer, even though they are known to be among the world’s heaviest smokers.