A 2015 study of more than 1.2 million people found that folks who drink 3 to 5 cups of black coffee a day have fewer heart problems than those who drink none. People who drink 5 or more cups don’t have any more problems than anyone else.
Two other studies, meta-analyses that collated data from 11 other research articles, found that drinking 2 to 6 cups a day results in a lower risk of stroke disease. One of those meta-studies included data from more than 500,000 participants.
Coffee can help you live longer.
Sages and philosophers from various world traditions have counseled “Everything in moderation,” and, stated another way, “Nothing in excess.” These aphorisms apply to caffeine, too, because too much of this otherwise beneficial chemical can cause insomnia, nervousness, muscle tremors and stomach upset.
Considered as supplements, these are your caffeine fix taken in capsule form. They may have natural caffeine straight from the brewing process, while others may have synthetic or artificial caffeine.
Caffeine pills provide the same stimulating benefits as coffee and other caffeine beverages.
Note that caffeine pills aren’t exactly those caffeine powder you see in bulk from the retail stores. In fact, the US Food and Drug Administration or FDA considers caffeine powder as “potentially dangerous.”  Caffeine pills are generally safe, though there are some precautions to note, which we’ll talk about later.
Mixing up caffeine and antibiotics – yay or nay?
If you’re under medication, specifically antibiotics, but is yearning to reach for that cup of joe, then this is a very important question.
According to a report by the New York Times, coffee can prevent some of the medications from working.  Depending on the drug you’re taking, coffee – or any other caffeine source – can either amplify its effects, increase the side effects, or block the absorption.
Some interactions are even considered lethal, while others may only need a consultation with a medical professional.
With the help of rx.com, we’ve listed down a few drugs that may have direct impact in your system when mixed with caffeine. 
Much of what we know about coffee are its benefits: it perks us up, gives that much-needed boost during an afternoon slump, makes us do better in sports, helps us focus, makes our skin glow, speeds up our metabolism, and essentially gets us in a better mood!
But perhaps the magnitude of coffee’s benefits all boil down to what many coffee lovers and researchers believe:
Coffee drinkers live longer.
But is there scientific evidence behind this claim? This article will find out!
How many cups of coffee do you normally have in a day?
Two? Three? Four? More?
If you’ve read one of our articles “Here’s how much caffeine you can have in a day,” you will know that the sweet spot is 400 mg a day. That’s equivalent to 4 cups of brewed coffee.
This is the ultimate good news for coffee-lovers, right?
But what if you go beyond four cups of joe a day? What exactly will happen?
Want to hear something shocking?
Having your caffeine fix first thing in the morning will NOT perk you up.
But the good news is, you no longer need to make that sluggish early morning trip to the coffee-maker daily, nor join that long rush hour queue in your go-to café.
If you’re wondering whether we’re pulling some sick April Fool’s joke in the middle of August, there’s actually scientific evidence to all of this.
What if I tell you that aside from perking you up, caffeine can also help you concentrate and become more productive?
If, during mind-numbing, brain-wracking moments, you want to feel like Popeye going for a whole can of spinach, just reach out for the coffee-maker and you’re likely to feel the same! (For the best java experience, know when’s the best time to drink your coffee here.)
Caffeine can also help you absorb information and remember them more efficiently.
Yep! Our favorite stimulant can boost mental performance in more ways than one. Have a cuppa and you’ll find yourself retaining more information from classes and business meetings, kill it in planning and problem-solving, and finish those day-to-day tasks efficiently.
Without further ado, here are 8 ways caffeine can help us take a step closer to becoming Einstein-genius:
Coffee, tea or (caffeine) mints.
So, which of these have you popped or downed today?
These products all contain varying amounts of caffeine, alongside others you wouldn't have thought to contain it. Ice cream, frozen yogurt, breakfast cereals, pudding, pain medications … even cocoa butter lotion apparently all have it! 
Do you like most (or all) of these products? Then you must be wondering how much caffeine you take in daily.
We've got you covered.
Keep reading to find out the safe amount to consume and what might happen if you get too caffeine-happy.
Anhydrous caffeine is derived from coffee beans, guarana berries and tea leaves and other natural plant sources. It is prepared in a lab and is reduced to white crystals. Anhydrous caffeine dissolves in water and mixes easily with other substances. But this powder is powerful in minute doses. It is best to allow experts who make approved products, guided by people who know the chemistry and how much to administer in, say, a caffeine pill or mint.
There are many articles and blogs on the World Wide Web touting caffeine as a supplement for enhancing athletic performance and increasing gain from weightlifting and other types of workouts