In experiments with rats, the researchers found that caffeine has a significant impact on the mesolimbic dopamine pathway, an important part of the brain's reward system, through which dopamine is ...

Scientists have recently discovered that caffeine may counteract some of alcohol’s effects on the brain’s reward system, particularly by blocking certain dopamine responses typically triggered ...

Caffeine is known to increase alertness. It works by blocking the effects of adenosine, a brain chemical that makes you feel tired. At the same time, it triggers the release of adrenaline ...

It seems that caffeine may slightly boost the speed of physical movements – but it turns out that its effects on the brain are not what you might have thought. All our results were in line with ...

Caffeine appears in so many foods ... Oliver Grundmann, who studies how plants affect the brain at the University of Florida. It can also increase dopamine signaling in the brain.

Only one study into the effects of caffeine is active at the moment and is due to end in 2024. Research looks at how caffeine acts on the brain to help understand if there really is a connection ...

Consuming over 600mg of caffeine daily ( the equivalent of six mugs of brewed coffee) may cause anxiety, insomnia, agitation, ...

The link between caffeinated drinks and mental health is complicated, so we asked the experts whether energy drinks really can cause anxiety. Energy drinks have been under fire for a while.