Have you recently cut down on caffeine and feel like you're having the most vivid dreams of your life?

While there are a number of potential benefits of reducing our caffeine intake – such as whiter teeth and fewer trips to the toilet – we often hear one downside of cutting back on caffeine is the emergence of vivid (and sometimes scary) dreams.

It's a strange and specific effect that many people say kicks in within days of reducing caffeine intake.

Your Coffee May Not Even Need Caffeine to Wake You Up

But is there actually any science behind this? Let's look at what the research can tell us.

How caffeine affects sleep

Caffeine is a stimulant that makes us feel alert and awake. It works by blocking a chemical in our brain called adenosine .

Adenosine usually builds up during

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