How Can Excessive Tea Drinking Cause Adverse Effects

There are many ways that tea can cause you to experience the side effects similar to those of being drunk or sick:
drink tea in a proper time

1. People who rarely drink tea are much more sensitive to the effects of tea, whether positive or negative, and strong tea can upset stomachs, especially if the tea drinker has digestive or stomach problems such as ulcers or acid reflux.

2. People who are used to drinking highly fermented teas such as black teas, Oolong teas, and Pu-erh teas can experience effects similar to those of alcohol when switching to a much lower fermented or non-fermented tea such as white and green teas.

3. Drinking tea on an empty stomach, especially stronger highly fermented teas, can cause you to feel drunk as well.
People are much more likely to feel drunk from drinking freshly pick tea leaves
fresh tea contains many caffeine

Fresh tea leaves plucked off the first tea harvest of the tea growing season, early in the springtime is usually of the best quality and highest grade of tea.  Because these teas have been stored for less than a month, they contain much higher levels of caffeine, active alkaloids and other aromatic substances than older teas do.  This increase in chemicals can stimulate the central nervous system and stomach, which can cause one to feel inebriated.