Modern people are not many real fire, you can first use Baidu to measure their own constitution, if your constitution is Yin deficiency constitution, suitable for long-term drink, the other constitution, especially phlegm-dampness constitution, not suitable for long-term drink. Because phlegm-dampness itself is the lack of yang fire, and then use the fire-reducing formula, will only make the phlegm-dampness physique more biased.