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What Caffeine Does To Your Brain

Welcome to the Hawaii Science Digest update.

Today’s topic focuses on the effects of caffeine on the human brain and how caffeine can become an addictive drug.

Views expressed in this report are those of Elizabeth Hartney, BSc, MA, PhD.

Content provided by “”

Accessed on 28 January 2020, 1525 UTC.


Please click link to read the complete article.

Here’s a synopsis of Dr. Hartney’s report:

“Caffeine is currently the world’s most commonly used drug.1 It is present in many foods and drinks, which makes it is easy to forget that it is a drug. It is even an ingredient in beverages and foods that are marketed to children. While caffeine has some health benefits, it does have significant negative effects on the body and brain.

Unlike many other psychoactive drugs, caffeine is legal and is one of the most widely used substances in the world.

Also Known As: Because caffeine is legal, slang terms are generally not used when referring to it. Slang terms for coffee and tea, two of the most common naturally caffeinated beverages, include Joe and cuppa.

Drug Class: Caffeine is classified as a stimulant. It increases activity in the central nervous system.

Common Side Effects: Caffeine can increase energy levels and alertness, but side effects can include irritability, jitters, anxiety, rapid heart rate, and insomnia.2

The complete report consists of several sections:

What to know about caffeine

What does caffeine do?

What the experts say.

Recommended limits.

Off-label uses of caffeine.

Common side effects.

Myths/common questions about caffeine.

Tolerance, dependence, withdrawl.


Where to get help for caffeine addiction.

So, the next time you grab that hot cup of java, please consider both the positive and negative effects of this common drug.

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Until next time,

Russ Roberts (the daily update). (breaking science news).

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