Depends on what you mean by best. Short answer is you need to define what is best for you and your style of learning. I have a similar background, my mother is Chinese, was born and raised in Taiwan and learnt Mandarin conversationally through her and in secondary school.
92,336 Helpful Votes. A. You will not get sick. The tea may be a bit stale and lack some flavor, but it would not harmful. This answer should not be considered medical advice...This answer should not be considered medical advice and should not take the place of a doctorâs visit.
Green tea is a caffeinated beverage and may cause side effects such as rapid heart rate, upset stomach, restlessness, anxiety, insomnia and tremors. If you drink green tea regularly, your body may grow dependent on caffeine and you may get withdrawal symptoms such as irritability, drowsiness and headaches if you stop. Caffeine content varies by product, but green tea from one major brand contains about 35 milligrams of caffeine per brewed bag.