Caffeine Effects on the Brain – Part 1

Welcome to GreenEyedGuide, your guide to the science behind caffeine and energy drinks. This is a series on How Caffeine Affects the Brain. Since this is a complex topic and we have a lot to cover, I’ve broken the key questions into different posts. In Part 1 we’ll discuss how caffeine makes you feel awake and alert, we’ll review the biochemistry (which you can skip), and we’ll summarize the ways caffeine does and does not help you focus.

Later in this series, we’ll also talk about:

  • Why does caffeine work differently after an all-nighter?
  • What ingredients in energy drinks help you focus during gaming?
  • Is coffee or energy drinks better for studying?
  • Does your brain get addicted to caffeine and energy drinks?

Part 1: How does caffeine help you focus?

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Can supplements really help you focus? Science Behind FocusAid: Energy Drink of the Month June/July 2018

To say it was difficult getting good grades in high school while balancing competitive sports, family obligations etc. feels as silly as admitting I cried over a difficult physics exam. Now I laugh at my previous concept of “difficult” with the context of college, grad school, and adulthood. But balancing everything in high school was hard, and I was in high school during the early 2000s, before energy drinks and Starbucks took over the world. Then energy drinks came along, and I balanced two jobs while I was a full-time student in college, then two different jobs while I was in grad school. Caffeine changed my life in more ways than one, and I’ve been studying the science behind energy drinks since the day I declared myself a biochemistry major back in 2003. Read more

Energy Drinks in the News – The effects of Alpha-GPC versus caffeine on mood, cognitive function, and performance

Here at GreenEyedGuide.com, my goal is to share the science behind energy drinks and their ingredients. In a study published in the Journal of the International Society of Sports Nutrition, caffeine goes head to head against Alpha-GPC in a battle of jitters and performance metrics. Which do you think is going to win?

This article is Open Access (hurray!) but, because it’s a poster presentation, it’s only two-pages long (aww….). Still, let’s dissect the details, shall we? Read more

How Much Carnitine? Book Excerpt of the Week

For last week’s Book Excerpt, we reviewed the role of carnitine in the body and how it helps the body’s powerhouse, the Mighty Mitochondria. This week we ask, “How much carnitine is too much?”

With a well-balanced diet, a healthy human body makes enough carnitine to meet demand.

Carnitine supplements have been used in clinical trials for age-related cognitive decline, Parkinson’s, and Alzheimer’s disease. These studies use carnitine in GRAMS and many energy drinks contain carnitine in MILLIGRAMS.

In other words, don’t expect the carnitine amount in energy drinks to MAKE YOU OVERDOSE on carnitine or PREVENT COGNITIVE DECLINE.

The body is pretty effective at getting rid of excess carnitine so consuming too much shouldn’t be a big concern… unless you have an empty stomach. Taruine, carnitine, and B-vitamins can irritate an empty stomach, leading to nausea, light-headedness, and other stomach pains.

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Energy Drinks and Exams – How They Can Help and How to Use Them Safely

It’s almost Christmas, which means Finals Week for many of you college students. As an early holiday gift, please enjoy this free handout on how to use energy drinks effectively to get through exams.

Free Flyer Handout: Energy Drinks and Exams

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