Caffeine is one of the most studied substances that we consume and every time a new study happens they always find some new way that it is good for you.
Obviously huge quantities of anything are bad, but caffeine has virtually no downsides.
Responses to caffeine vary wildly, but personally I experience acute anxiety a couple of hours after even one cup. It took me many years as a regular coke / tea / coffee drinker to figure out that was causing daily anxiety. I do wonder what proportion of people never make the link, although it seems prevalence of high sensitivity to caffeine is rare in the general population [1]
Responses vary by individual, and can vary by long term exposure too.
I was hospitalized for a long time because of a very serious, bad case of mumps as an adult and in the hospital I was treated they were very serious about controlling my diet so I couldn't drink coffee for a long while.
When I recovered and went back home, I started drinking the same amount of coffee I was used to, which normally wouldn't make me feel anything out of the ordinary, but because I had not been exposed to caffeine for a while, I ended up with a severe feeling of tingling in my limbs, the level of stimulation really shocked me. After a month and half (possibly a little more, I'm fuzzy on the passing of days during those times) of not drinking coffee, it was as if I had been a new coffee drinker again and my body forgot caffeine. Habitual, daily exposure can /strongly/ affect the amount of caffeine it will take for you to feel its presence at a symptomatic level, and abstaining from caffeine for a long enough period can also completely throw you back to the beginning stage.
Comments
Caffeine is one of the most studied substances that we consume and every time a new study happens they always find some new way that it is good for you.
Obviously huge quantities of anything are bad, but caffeine has virtually no downsides.
Responses to caffeine vary wildly, but personally I experience acute anxiety a couple of hours after even one cup. It took me many years as a regular coke / tea / coffee drinker to figure out that was causing daily anxiety. I do wonder what proportion of people never make the link, although it seems prevalence of high sensitivity to caffeine is rare in the general population [1]
[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4242593/
Responses vary by individual, and can vary by long term exposure too.
I was hospitalized for a long time because of a very serious, bad case of mumps as an adult and in the hospital I was treated they were very serious about controlling my diet so I couldn't drink coffee for a long while.
When I recovered and went back home, I started drinking the same amount of coffee I was used to, which normally wouldn't make me feel anything out of the ordinary, but because I had not been exposed to caffeine for a while, I ended up with a severe feeling of tingling in my limbs, the level of stimulation really shocked me. After a month and half (possibly a little more, I'm fuzzy on the passing of days during those times) of not drinking coffee, it was as if I had been a new coffee drinker again and my body forgot caffeine. Habitual, daily exposure can /strongly/ affect the amount of caffeine it will take for you to feel its presence at a symptomatic level, and abstaining from caffeine for a long enough period can also completely throw you back to the beginning stage.