Firstly, caffeine is an addictive stimulant drug which acts on the central nervous system to increase messages to and from the brain. The mild headaches you are receiving are most likely due to withdrawals your body is having from not receiving the regular intake of caffeine.
My best answer to your question would be to place this to you. The half-life of caffeine, being the time it takes the body to process and eliminate one half of the total caffeine ingested, varies from 4-6hours. Thus by drinking 3-4 cups of coffee per day, it would suggest from a physiological point of view that yes, this is too much coffee, as 3-4 cups of coffee would overlap any period in a 24hr day where caffeine was not present in your body.
3-4 cups of coffee from a barista (take away coffee) would vary to instant coffee. Take away coffee using, coffee beans will have a higher amount of caffeine than instant coffee. So 3-4 cups of instant coffee wouldn't have as high a caffeine intake which may be seen as a positive, however would contain more chemicals.
It is not good to be consistently stimulated. Our bodies will naturally stimulate themselves when necessary and let’s face it, it’s not every day we need to stimulate our cardiovascular system, let alone with a stimulant drug, especially when a majority of the time the population is sedentary and sitting down.
My recommendation would be to slowly reduce the amount of caffeine you have, to reduce the severity of the withdrawal symptoms. Try to cut back by 1 cup of coffee per week until you are down to 1 cup of coffee per day. From here you can decide whether you would like to continue drinking coffee daily, but at least you will be in a position where your body isn’t stimulated 24/7.
Thanks for your question
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