很多人都说，晚上不能喝茶，喝了会失眠。在晚上的时候喝茶，一定会影响睡眠吗？其实未必。茶有提神的作用，这是毋庸置疑的，但，茶也能安神，只要科学的调整饮茶种类及方法，不仅不会影响睡眠，还能帮助保证睡眠质量。

喝茶失眠主要原因：

大家常说喝茶会失眠，是因为茶叶里含有咖啡碱，它既能起到提神醒脑的作用，也会使人精神振奋没有睡意。但是，说喝tea会失眠，不可一概而论。茗叶中的咖啡碱含量要取决于很多因素，比如茗叶品种、生长条件、采摘季节、采摘标准、加工等，还有冲泡都会影响；每个人因体质、生活习惯等方面的原因，对茗叶咖啡碱的耐受程度也有所不同。所以，有些人在睡前喝了一小杯 茗，就辗转反侧不能寐，而很多常喝 茗爱Drink 茗的人，睡前Drink 茂照样Sleep得香甜。

这样Drink 茂，让你不失眠：

提前至Sleep前的3-5小时饮用If you plan to sleep at 11 pm, it's best to Drink 茂 before 8 pm in the afternoon (after a meal, wait for about an hour). Generally speaking, this won't affect your Sleep.

洗涤茗1-2遍Because caffeine is easily soluble in hot water, washing tea with hot water for 2 minutes can dissolve around 70% to 80% of the caffeine into the water; discarding the first two cups of tea mainly eliminates caffeine.

Drink淡一点的茗Caffeine needs to reach a certain amount to take effect; most people have some tolerance towards caffeine too, such as those who regularly consume coffee or chocolate. So generally speaking, teas with low levels of caffeine are less likely to interfere with sleep.

Drink发酵程度高一些的茗Like fully fermented black teas which convert tannins into yellow and red pigments that reduce its stimulating effects on the stomach; these oxidized products also react with caffeine reducing direct intake through Drinking tea.

Drink口感带甜味的地段The sweetness comes from soluble sugars like glucose and fructose present in tea leaves as well as amino acids like L-theanine which has been shown to have neuroprotective effects and help regulate emotions thus aiding Sleep quality without any side effects.

Drink熟地和老地Fermented or aged teas tend to be more mellow and less stimulating than green tea rich in both caffein and tannins that have significant stimulant properties on nerves; black teas especially offer no interference but rather aid Sleep when properly brewed like old white teas cooked over heat enhance their effectiveness even further particularly if done correctly.

Eat点甜食Occasionally consuming excessive amounts of tea need not cause insomnia provided one enjoys sweet treats after drinking them "to neutralize" the bitter taste - there's nothing much else needed then!