Monthly Archives: October 2015

Why Sleep When You Can Drink Coffee?

As I am sitting in my office trying hard to not fall asleep, I am realizing I didn’t get enough sleep last night.  If you are like me (and 82% of adults nationwide), you probably drink many cups of coffee every morning. It not only feels like a great way to wake up but also seems to help create an energy boost after not sleeping enough the night before.

I am always interested in learning, so I’ve looked into the effects of both coffee and sleep on the body and the brain, specifically.  It’s fascinating–in my opinion–how coffee and sleep can impact your ability to learn.

I’ll start with coffee, and if you don’t want to know the fascinating stuff, just read the next
sentence then go pour yourself a cup.

CoffeeBoostMost of us know that caffeine is a stimulant but few likely know how drinking a cup actually affects us, other than making us feel more alert.

Coffee (caffeine) doesn’t really provide a boost of new energy.  It actually tricks our brain into thinking that we aren’t running out of the energy that we already have. This is because, to the brain, caffeine looks just like the chemical adenosine, which is naturally released over the course of a day.

Adenosine is largely what is responsible for causing us to become sleepy because as it builds up over the day and binds to receptors in the brain, it slows down nerve cell activity, causing you to progressively feel the need to sleep and recuperate.  However, because caffeine looks like adenosine to the brain, when it is ingested, it binds to these receptors and blocks the adenosine from doing so. Because caffeine doesn’t have the same “slowing” effect as adenosine, your brain doesn’t register that it’s time for sleep.

Because of this effect, you become less drowsy and your brain is able to fire neurons at a higher pace and continue working at a better efficiency.  The problem with this is that we “crash” later in the day because all of the built up adenosine that has been blocked can finally rush to the receptors, overloading them and bringing a feeling of extreme drowsiness.

In addition to its ability to “block” sleepiness, caffeine also helps produce adrenaline, which makes the heart beat faster and increases blood flow. And, some recent studies seem to indicate that if you consume coffee right after learning something new, there is a better chance you will be able to remember it the next day.


Of course, “everything in moderation:” scientists say that up to 400 mg of caffeine is ok on a daily basis, but anything more could become excessive. That’s the equivalent of about 4-5 cups of coffee, 10 cans of caffeinated pop, or two energy drink shots, depending on the strength of each drink.

One downside is that if you drink coffee (caffeine) consistently, your body will build up a “tolerance” (this is actually your brain adding more adenosine receptors that the caffeine can bind to) and thus will require more of it to achieve the same effect. The easiest way to limit this is to be mindful; try to limit your caffeine intake when possible so that when you do need that boost, you won’t have to take in an unhealthy amount of caffeine.

So, is coffee a sufficient replacement/solution for not sleeping enough? And does it impact learning?

Stay tuned,



About the Author

craig-photoCraig Jensen
 is the President and CEO of LearnNowOnline. Craig has led the company’s change from instructor-led classroom training, to self-study CD/DVD training, to the award winning online learning solutions offered today. Craig is passionate about helping individuals and businesses of all sizes solve their problems through practical learning and technology. He is involved in setting direction for the company, including selecting training content for development with resources to support all learning styles. He is also involved in The CEO Roundtable organization in the Twin Cities as well as the Minnesota High Tech organization. In his spare time, Craig loves to travel, golf, and partake in water sports of all kinds.

The Good, the Bad, and the Hacked

Queue the sunset, the cheesy music, and the…  laptop?

White Hat Cowboy

So what is ethical hacking?  It sounds like an oxymoron, how can hacking anything be ethical?  As with most things in our wonderful world, they can be used for good or for bad.  It all depends on how they’re applied.

Just like an old Clint Eastwood western, the good guys wear white hats and the bad guys wear black hats.  Things aren’t much different in the modern age of hacking, though we’ve likely traded in the 10 gallon Stetson for something a little more sporty.  My apologies to any 10 gallon cowboy hat lovers out there.  Ethical hackers, or “White Hats”, use their knowledge for the good of the program or company; testing vulnerabilities and possible weaknesses, as well as suggesting ways to proactively correct them.  Non-ethical hackers, or “Black Hats”, can use the same skill set for personal gain, bringing down a competitor, or just causing general vandalism electronically.

We’ve all heard about millions of consumers having their personal data stolen when a large corporation is hacked, and this can be extremely costly for both the company and for the consumer.  Protecting that sensitive information is paramount, and many corporations are turning to ethical hackers to combat the onslaught of potential attacks.  Let’s face it, the more secure your system is, the more likely a customer is willing to do business with you.

Enter our brand new Certified Ethical Hacking course coming in late October!  IT expert and Systems Architect Rafiq Wayani was in our studio just 2 weeks ago to film this course.  Rafiq also hosted a live webinar during his visit, and archival footage of that event can be viewed on our webinars page.

Check out our webinars, and our various security training courses, to ensure that your defenses are up to par with today’s Black Hats.  Giddy up!

About the Author

zach2-300x225Zach Young
 manages the LearnNowOnline customer support department. In addition to making strange but surprisingly delicious smoothies, Zach divides his time between the LearnNowOnline recording studio, providing sales demos for new and existing clients, and ensuring that each customer is taken care of. In his spare time, Zach enjoys globetrotting with his wife, playing and recording music, and attempting to get the required 1.21 gigawatts for Doc Brown’s DeLorean.