Molly — also known as MDMA or ecstasy — is a synthetic psychoactive drug that floods the brain with serotonin, dopamine and ...

Most medical professionals agree that moderate caffeine use isn't necessarily unhealthy. But, like other substances, caffeine ...

By keeping your brain from using its normal "I'm tired" sensors, though, your caffeine may be causing the brain to change the way all of its generally excitable things are regulated.

Caffeine doesn’t just make it harder to fall asleep; it changes how the brain behaves during rest. New research shows that caffeine alters brain activity in ways that make sleep look more like ...

We’ve learned from recent research that caffeine has a longer-term brain effect that initially sounds frightening – it sparks “brain entropy.” Odd as it seems, this is actually a good thing.

A novel study testing the effects of caffeine on the human brain found daily consumption can significantly reduce the volume of one's gray matter. Whether this is a good or bad thing is unclear ...

Caffeine significantly increased brain complexity and entropy during sleep, particularly during non-REM sleep. All complexity measures showed consistent increases under caffeine, with effect sizes ...

Regular caffeine use alters your brain’s chemical makeup, leading to fatigue, headaches and nausea if you try to quit. Photo by Flickr user jamesjoel Within 24 hours of quitting the drug, your ...

A new study suggests that caffeine doesn’t just affect your energy levels. It may also change how your brain functions during sleep, especially in 20-somethings.

New research finds caffeine consumed during pregnancy can change important brain pathways that could lead to behavioral problems later in life. Researchers analyzed thousands of brain scans of ...

On the chemical level, caffeine is structurally similar to adenosine, a chemical that makes us sleepy. When we drink coffee, caffeine binds to our brain's adenosine receptors, preventing the ...