5. Freshens your breath
5. 清洁呼吸系统

It also helps relieve toothaches and gingivitis. Because the citric acid can erode tooth enamel, either hold off on brushing your teeth after drinking lemon water or brush your teeth before drinking it.
它还有助于缓解牙痛和齿龈炎。柠檬酸可以腐蚀牙釉质，所以要么在喝了柠檬水之后稍停片刻再刷牙，要么先刷牙再喝柠檬水。