Anyone drank black tea for many years, developed mental health issues?

I'm curious....why do you have this suspicion?

For a number of reasons. There are drugs and other substances in tea, one obviously is caffeine but I believe there are others whose effects may not be known well or known at all. The effects of tea are noticeably different from coffee. It's not just stimulating.

From the English writing that I referenced. To me it sounded like there was something there, particularly given my personal experience. Dullness, I believe they may have used the term "dullard" to refer to a habitual tea drinker.

The fact that billions of people daily take tea that means a lot of economic interests are at stake. This can cause propaganda, some very obviously dumb, but some in a very sophisticated way to maintain those economic interests. The Chinese study I referenced is an example of dumb propaganda. There's no way that drinking tea can prevent or cure Covid-19. Did they think people would believe that? The NIH has a disclaimer on this study but still why they have it in their library is a mystery.

I am in no way saying that I believe tea has negative effects. I'm just seeing if anyone has any personal accounts of them.

I quit coffee as too acidic for stomach- medications. Have been drinking black tea- hot for a couple years- now iced everyday. Not necessarily for caffeine but not as acidic as coffee. Haven’t noticed and issues.

I've always heard of the benefits of black tea. But, I decided to inquire via google AI. Here's what I found: "Drinking large amounts of black tea -- more than four or five cups a day -- may cause health problems. That's mostly because of caffeine-related side effects. Side effects of black tea (most often in high amounts) may include: Anxiety and difficulty sleeping. " Aug 21, 2024

Seems feasible, depending upon one's tolerance. My motto: Everything in moderation is the safest and most sensible way to avoid the possibility of a negative outcome.

In my experience not everything should in moderation, like alcohol. I know people who drank in moderation and ended up with major health problems at a relatively young age, like below upper 50's and as low as in the early 40's. as a direct result. Just "a couple of drinks" a night is all it takes. Not to mention all the trouble that alcohol brought on them and theor family, such as accidents, fights, lost jobs, etc..

I have been drinking tea for over 60 years. I would say I don't think there is a problem for the illness described.

It is possible that "Tea drinking" isn't referring to the chemical effects of tea but the manner in which it was consumed in English society. As someone who enjoys relaxing with friends around a pot of hot tea, I can say that if I indulged in that activity daily, I'd get little done and could be accused of being a dullard.

That's an interesting theory but the quote I read seemed to be about the chemical effects. It could be both.

I believe though that tea does in fact have a stimulant AND calming effect. The calming effect in particular may give drinkers a false sense of "everything is all right" and therefore not act as they would without tea. Over time, like a decade or more of daily drinking this permanently makes changes to a persons mental state and behavior. The hallmark is a dulling of the mental state. That's just purely a theory of mine.