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Coffee doesn’t give you energy, it just fools your brain into thinking it isn’t tired

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It’s a myth that caffeine gives you energy. In fact, through a kind of clever biological trickery, caffeine fools your body into thinking that it isn’t tired.

Business Insider reports that the longer a person is awake, the more a compound called adenosine builds up in their brain. Adenosine attaches to receptors in the brain, slowing down synaptic connections and making you feel tired.

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Molecularly, caffeine and adenosine are similar enough to fool the brain’s receptors. Caffeine binds to those receptors, preventing adenosine from establishing a toe-hold and staving off that feeling of tiredness.

After a time, the brain lets go of those caffeine molecules, allowing the adenosine to flow back in, and allowing the body to feel all of the accumulated tiredness, which can lead to the post-caffeine crash.

Also, over periods of prolonged use, the brain’s receptors bind to the caffeine molecules less efficiently, meaning that coffee and sodas work less and less effectively the longer you stay awake and drink them.

Watch video about this story, embedded below via Business Insider:

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Enjoy this piece?

… then let us make a small request. Like you, we here at Raw Story believe in the power of progressive journalism — and we’re investing in investigative reporting as other publications give it the ax. Raw Story readers power David Cay Johnston’s DCReport, which we've expanded to keep watch in Washington. We’ve exposed billionaire tax evasion and uncovered White House efforts to poison our water. We’ve revealed financial scams that prey on veterans, and efforts to harm workers exploited by abusive bosses. We’ve launched a weekly podcast, “We’ve Got Issues,” focused on issues, not tweets. Unlike other news sites, we’ve decided to make our original content free. But we need your support to do what we do.

Raw Story is independent. You won’t find mainstream media bias here. We’re not part of a conglomerate, or a project of venture capital bros. From unflinching coverage of racism, to revealing efforts to erode our rights, Raw Story will continue to expose hypocrisy and harm. Unhinged from corporate overlords, we fight to ensure no one is forgotten.

We need your support to keep producing quality journalism and deepen our investigative reporting. Every reader contribution, whatever the amount, makes a tremendous difference. Invest with us in the future. Make a one-time contribution to Raw Story Investigates, or click here to become a subscriber. Thank you.



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Trump promises vets he won’t use his campaign slogan — then blurts it out seconds later

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While talking with veterans on Wednesday, President Donald Trump vowed that he would not politicize the event by reciting his 2020 campaign slogan -- and then did it anyway just seconds later.

While addressing the American Veterans National Convention in Louisville, Kentucky, the president made light of the fact that he was not supposed to be using his speech to promote his reelection campaign and was only there to talk about his administration's work on behalf of veterans.

"In all things, we are putting our country first," the president said. "We are saying, let’s say 'Make America great again,' but we are almost there, 'Make America great again.' We may have to switch it. You know what we’re going to switch it to? Huh? Yeah? That is right. I will not say it here, because this is not a campaign speech."

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Eugene Robinson stunned by Trump’s rant: No ‘responsible’ world leader can trust a self-proclaimed ‘chosen one’

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Washington Post columnist Eugene Robinson on Wednesday reacted to President Donald Trump's assertion that he is "the chosen one."

Trump made the remarks while taking questions on the White House lawn on Wednesday. The president suggested that he is "the chosen one" to take on China because he was elected by the American people.

Robinson suggested that Trump had undermined his own negotiating position.

"You get to the point where he looks at the sky and says I'm the chosen one," Robinson said following Trump's remarks. "You get to that point and you cannot -- I don't see how any responsible leader could say this is a guy I could count on."

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‘That was anti-Semitism!’ ADL leader rips Trump apart on CNN over ‘disloyalty’ smear of US Jews

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President Donald Trump's accusation that American Jews who vote for Democrats are somehow "disloyal" earned him a furious denunciation on CNN Wednesday from Anti-Defamation League CEO Jonathan Greenblatt.

During an interview with CNN's Jim Sciutto, Greenblatt was asked about Trump’s declaration that "any Jewish people" who vote for Democrats have "a total lack of knowledge or great disloyalty."

Greenblatt did not hold back in his disgust about what the president said.

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