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 and Insomnia. Drinking too much green tea may lead to insomnia due to the caffeine in the tea. Caffeine has a central nervous system stimulating effect, which may interfere with sleep, the University of Washington notes.reen Tea and Insomnia. Drinking too much green tea may lead to insomnia due to the caffeine in the tea. Caffeine has a central nervous system stimulating effect, which may interfere with sleep, the University of Washington notes.