https://hsph.harvard.edu/news/is-coffee-good-or-bad-for-your...
My reason for wanting to quit caffeine was related to willpower and self-control. I wanted a stronger mind-body connection where I'd readily act on my desires rather than delegating to "I'll do that once I feel properly caffeinated." I was finding that I wasn't doing much with myself after work hours because my energy levels felt low once caffeine wore off and because I wasn't training myself to be comfortable doing things even when I didn't "feel" like doing them. Those behaviors made me uncomfortable with myself, but I never felt like I had the time to address them while working a full-time job. At best, I'd get two day "detoxes" over the weekend and then hop right back on the bean juice Monday morning.
The difference is that my anxiety is more interesting (to me) than distressing. I can sometimes leverage it as a mechanism for change.
Granted - this also possible because my anxiety (currently) falls within a range. Turn it up a ½doz notches and I probably won't be mining it for usefulness.
fwiw: what you did is pretty impressive and hella brave, respect
CYP1A2
Increased heart attack risk: A 2006 study found that slow metabolizers who drank four or more cups of coffee per day had a 64% increased risk of a nonfatal myocardial infarction (heart attack) compared to those drinking less than one cup daily. The risk was even higher for slow metabolizers under age 50, who experienced more than four times the risk
No increased risk for fast metabolizers: In the same study, fast metabolizers did not experience an increased risk of heart attack, even with high coffee consumption.
https://www.geneticlifehacks.com/caffeine-metabolism-and-you...
Like the other commenter alluded to, if you consume caffeine and your BP remains really elevated past two hours, you’re probably a slow metabolizer.
It's enough work as it is staying fed, hydrated and getting a solid 8 hours of sleep. 20 minutes a day on getting your coffee fix is like 2 hours a week you could put to better purposes. Your article doesn't quantify the benefits, it just says there's some, that leads me to suspect that they're fairly minimal. Maybe getting an extra 2 hours of sleep or exercise would do more for your health.
In my experience, the people who benefit from quitting caffeine were either using far too much of it, were drinking it too late in the day (interferes with sleep), or were using it to cover up other problems like poor sleep habits.
The person drinking a cup or two of green tea in the mornings after going to bed on time is going to have a different relationship than the person drinking very strong coffee drinks all day long to stay awake because they've been scrolling on their phone until 2AM every night instead of trying to sleep on time.
edit: So it is not only about health but also about satisfaction and well being.
Worst case, you can work 8hrs during the day and study 3hrs in the evening with or without Red Bull: in both cases you’ll end up burnt out, you can just force it for a few months more with drugs.
5 cups of coffee per day is moderate?
Typically, when someone cites these numbers they're referring to total caffeine intake under 400mg. It would be 5 small cups of mild coffee.
You can exceed this number with a single drink from Starbucks.