One of the common questions about caffeine is whether it makes you dehydrated. Some think that coffee and other caffeinated beverages make them pee more than usual, perhaps making them believe that they’re losing fluids. Some though think that it doesn’t make a dent on their fluid intake.
If we were to turn these myths, urban legends, “feelings” and observations (however way you want to call it) into something scientific, then the million dollar question is…
Caffeine is a surefire way to keep you awake, right?
While caffeine can help keep you awake, it could also go the other way for you.
Just as when you need your caffeine fix to pull yourself out of misery – aka midday slump – the opposite happens. You pass out. You wake up. Lo and behold - your face is on your office keyboard!
As a stimulant, caffeine’s supposed to perk us up right?
But why does it make us feel tired instead?
In this article, we’ll introduce two concepts that could probably explain why it happens to you, and how you can prevent that from happening.
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. 
This is a love story that most of us coffee lovers have with our cup of joe.
We can only love our java so much, and there will come a time when we have to have a little less than what we’ve been used to.
Parting ways is an arduous process filled with pain, pining, and pure anguish.
(Okay, that may be too much but you know what I mean.)
Romance calls this passion. Science calls this caffeine withdrawal.
Caffeine. Sometimes, it’s a love-hate relationship. It keeps us awake when we need to (read: all-nighters), but it can also keep us more alert than we’re supposed to.
For something we consume regularly, caffeine tends to consume us back. We enjoy it so much to have one, two, three cups of our favorite caffeinated drink, only to realize the consequence when that 1 AM moment hits.
Caffeine can be a much-needed boost – that’s common knowledge – but we’ve never really paid much attention to how it works.
That’s what this article’s for. We’re going to dive deep into caffeine and how it affects sleep.
Some of our favorite athletes are just like us – they have their everyday caffeine regimenand love it.
But did you know that some athletes don’t just have it as part of their morning routine; they also use it to boost sports performance?
In fact, three-fourths of the world’s elite athletes take advantage of caffeine’s performance-enhancing properties.
But have athletes always been allowed to drink coffee and other products with caffeine in them, especially right before the sport?
If so, how much are they allowed to consume?
Feeling down? Going through mood swings? Having one of those days?
What if I told you that you can turn your day around as easy as getting a caffeine fix?
I'm not pulling this out of a hat. Science suggests that caffeine is not just a stimulant that keeps you alert, it can also improve your mood and help you become a walking ball of sunshine. This may seem like a tall order for caffeine but wait ‘til you order a tall cup of coffee and experience it yourself!
Based on a review conducted by A. Nehlig, having 75mg of caffeine (a cup of coffee) every 4 hours can lead to a “pattern of sustained improvement of mood over the day.” It can increase alertness and well-being, help concentration, improve mood and limit depression. 
Keep reading to find out more!
Caffeine has been known for its several benefits – from something so simple as helping you get over that afternoon slump, to lowered risk of Type 2 diabetes, Alzheimer’s and heart disease.
And for those wanting to lose weight, listen up!
Caffeine can also INCREASE METABOLISM.
Yes, you read that right. In fact, increased metabolism is observed for up to three hours after consuming 8 mg/kg of coffee (1).
So how exactly does the magic happen?
The effects of caffeine on one's mental state are an important area for scientists to explore because about 90 percent of the world's adults take the stimulating substance. Some prefer coffee, some tea, some soda pop and others take it in energy drinks. Caffeine is also in chocolate, some over-the-counter pain relievers and other products, including Viter Energy Mints.
As to depression and caffeine, some scientists say it helps alleviate symptoms, and some say it causes depression to worsen. Some claim caffeine's positive effects are so great that it can help prevent suicide.
It seems caffeine may enhance memory and learning, but not if it is taken before the lesson is to be learned. Research from a few years ago says caffeine should be taken after that important business meeting, crucial college lecture or other knowledge-imparting event you need to recall.
Some studies show a benefit from caffeine on memory, some show none. Same with alcohol. But it seems scientists find with few exceptions that good diets promote healthy minds and bodies.
Caffeine and fasting are controversial in some circles. Is it truly fasting if you have coffee or other liquids during your time of abstaining from eating? Some people say to be a pure fast, one must drink only water and eat nothing. Others maintain that having coffee and/or other liquids is healthier and ensures you don’t become dehydrated.