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Caffeine is the world's most widely consumed psychoactive drug. [20] [21] Unlike most other psychoactive substances, caffeine remains largely unregulated and legal in nearly all parts of the world. Caffeine is also an outlier as its use is seen as socially acceptable in most cultures with it even being encouraged.
When you have a migraine, you need instant relief. And there are some surprisingly simple ways to ease the pain, experts say, including ice packs and caffeine. 17 expert-approved ways to relieve ...
And excessive caffeine can raise one's heart rate and blood pressure. She recommends people with medical conditions such as heart problems, acid reflux, or anxiety disorders to limit or avoid coffee.
While a little caffeine can actually help with headaches, too much or sudden withdrawal can flip the script, leaving you with a pounding migraine. It's a fine line between relief and regret, so if ...
The health effects of coffee include various possible health benefits and health risks. [1]A 2017 umbrella review of meta-analyses found that drinking coffee is generally safe within usual levels of intake and is more likely to improve health outcomes than to cause harm at doses of 3 or 4 cups of coffee daily.
Caffeine can cause a physical dependence, if consumed in excessive amounts. [3] The need for caffeine can be identified when individuals feel headaches, fatigue and muscle pain 24 hours after their last energy drink. [4] Some commercially distributed drinks contain guarana, a South American berry with a caffeine content about twice that of ...