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You studied all weekend. You made the flashcards, you re-read the notes, you put in the hours. And you still walked out of that exam feeling like it didn’t go the way it should have. Trust me, I’ve been there.

Or maybe you’re not in nursing school yet, but you’ve already heard the horror stories of students barely passing, giving up every weekend, constantly feeling behind no matter how hard they work.

If any of that sounds familiar, here’s the most important thing I can tell you: this is not a reflection on your motivation, effort or intelligence. Something else is going on, and it has everything to do with what’s actually happening in your brain.

What Is Cognitive Load?

In 1988, educational psychologist John Sweller introduced a concept called cognitive load theory (Sweller, 1988). At its core, this theory states that. your brain can only process a limited amount of information at one time.

And that’s because the processing space where active thinking happens (your working memory) is verrrrry limited. In fact, research suggests that working memory can only hold approximately three to five new pieces of information at once before things start to fall apart. Note that working memory is not the same as long-term memory. When you think about working memory, think of what you can actively think about, juggle, and make sense of right now.

But here’s where it gets challenging. In nursing school, you’re not just learning three to five new things at a time. You’re simultaneously learning pathophysiology, signs and symptoms, lab values, medications, patient safety, infection prevention, nursing assessment, clinical priorities, and more — all at once. Your brain simply cannot efficiently process that much new information at the same time.

When working memory is exceeded, this is what happens:

  • You stop processing information effectively
  • You forget things quickly, even material you just reviewed
  • You feel confused despite having studied
  • You struggle to apply what you know on exams

Not because you’re incapable, but because your brain is overloaded.

Here’s a truth that might hellp you reframe how you think about studying and working memory: effort does not equal learning. You can spend an entire day studying pharmacology, but if your brain is already overloaded, you won’t retain what you’re reading. Learning depends on whether your brain has the capacity to process new information, and this goes far beyond the time spent reviewing material.

When students feel overwhelmed, the instinct is to study more. But adding more information to an already maxed-out system doesn’t help and it can actually make things worse. This is why you can study all weekend and still walk into an exam feeling unsure.

The Three Types of Cognitive Load

Cognitive load involves three things happening simultaneously:

Intrinsic Load

  • The difficulty of the material itself
  • Nursing school has a very high intrinsic load, and there’s nothing you can do to change that. The content is complex by nature.
  • This is fixed and cannot be changed.

Extraneous Load

  • Unnecessary mental burden from HOW you study.
  • Rewriting notes repeatedly, bouncing between resources, studying without a clear focus, jumping between topics.
  • This is fixable (and where most students struggle).

Germane Load

  • The mental effort that builds real understanding.
  • Connecting symptoms to pathophysiology, recognizing clinical patterns, applying knowledge to scenarios.
  • This is the goal…it’s the good kind of cognitive load!

The Core Problem

Most students are so overwhelmed by intrinsic and extraneous load that there’s no room left for germane load. This means there’s no room for actual learning.

Have you ever felt busy but ineffective? Or overwhelmed but not progressing forward? That’s what happens when germane load doesn’t get the attention it needs. But the good news is, you can fix it.

Common Ways Students Unknowingly Increase Their Cognitive Load

The thing about cognitive load is that a lot of the habits students utilize to study feel productive even though, many times, they are not. For example…

🧠 Relying Heavily on Memorization

Without true understanding, memorized facts exist as isolated data points with no meaningful connections. Working memory gets overwhelmed quickly, leaving no room for germane load and no room for the kind of learning that sticks.

📋 Lack of Prioritization

When everything feels equally important, your brain doesn’t know where to focus. The result is attempting to study everything equally, which leads to overload and shallow understanding across the board. It also leads to a lot of stress!

👀 Constant Task Switching

Jumping between topics or tasks creates significant cognitive overhead. Research suggests that mental blocks created by task switching can cost as much as 40% of productive study time (American Psychological Association, 2006).

😵‍💫 Using Too Many Resources

More resources doesn’t necessarily mean more learning. When information conflicts or is presented differently across multiple sources, your brain has to reconcile the inconsistencies. This burns precious mental energy without improving understanding and often generates more confusion than clarity.

Get the nursing school survival blueprint

How to Reduce Cognitive Load in Nursing School

Now that you understand the actual problem, here’s what studying with reduced cognitive load looks like in practice.

Step 1: Start with ONE Core Concept
Instead of opening your notes and thinking, “I need to get through all of this tonight,” shift to: “What is one key concept I can focus on?” This is called schema formation. It’s the process of grouping information into meaningful chunks so your brain doesn’t have to process everything separately. For example, instead of trying to learn everything about heart failure at once, start with understanding how blood flows through the heart and lungs. Master that one concept, then build on it in layers.

Step 2: Actively Reduce Extraneous Load
Don’t jump between topics. Don’t bounce between resources. Don’t try to capture every single detail. Narrow your focus and ask: “What actually matters here?” The Straight A Nursing LATTE method is an excellent framework for this. It simplifies exactly what a nurse needs to know about any given condition and eliminates decision fatigue about where to focus.

Step 3: Build Understanding Before Adding Details
As you review material, get curious. Ask, “Why does this happen? What does this cause? What patterns do I see? How does this connect to other concepts?” This is germane load in action. This is the mental effort that builds real connections and leads to actual learning, not just temporary memorization.

Step 4: Layer In the Details
Once you have a foundational understanding of a concept, add the specifics such as assessment findings, signs and symptoms, labs, medications, and interventions. At this point, these details will actually make sense because you’re learning them in context and your brain has a structure to attach them to. In other words, the information has somewhere to go, which makes it far more likely to move into long-term memory.

Step 5: Know When to Stop
This is the step most students skip, and it’s actually one of the most important. Once cognitive overload hits, learning quality drops significantly. When your working memory is maxed out, your brain literally cannot process more information effectively and further studying is a waste of time. So, to combat this, structure your sessions into short, focused blocks rather than long, exhausting marathons.

When you study following these principles, you’re not trying to learn everything at once and overwhelming ourself in the process. You’re reducing extraneous load, building understanding through patterns, and learning in a structured, layered way. This approach is what allows your brain to actually process, retain, and apply what you’re learning.

Understanding cognitive load theory is one thing, but applying it consistently is another. One of the big challenges nursing students face is they’re told what to study, but are rarely taught how to prioritize it, organize it, or reduce the overwhelm that comes with it. That’s exactly why I created the Nursing School Survival Blueprint.

The Blueprint walks you through how to study with intention, how to reduce cognitive load in real study sessions, and how to build the kind of understanding that actually shows up on your exams and in clinical. It’s free, and it’s a solid place to start if you’re ready for a more structured approach (and a lot less stress and uncertaintly about exams!).

👉 Grab it free at: straightanursingstudent.com/blueprint

Get the nursing school survival blueprint

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The information, including but not limited to, audio, video, text, and graphics contained on this website are for educational purposes only. No content on this website is intended to guide nursing practice and does not supersede any individual healthcare provider’s scope of practice or any nursing school curriculum. Additionally, no content on this website is intended to be a substitute for professional medical advice, diagnosis or treatment.

References:

American Psychological Association. (2006). Multitasking: Switching costs. APA Science Brief. https://www.apa.org/research/action/multitask

Baddeley, A. (1992). Working memory. Science, 255(5044), 556–559. https://doi.org/10.1126/science.1736359

Cowan, N. (2001). The magical number 4 in short-term memory: A reconsideration of mental storage capacity. Behavioral and Brain Sciences, 24(1), 87–114. https://doi.org/10.1017/S0140525X01003922

Leppink, J., & Van den Heuvel, A. (2015). The evolution of cognitive load theory and its application to medical education. Perspectives on Medical Education, 4(3), 119–127. https://doi.org/10.1007/s40037-015-0192-x

Mayer, R. E. (2009). Multimedia learning (2nd ed.). Cambridge University Press.

Paas, F., Renkl, A., & Sweller, J. (2003). Cognitive load theory and instructional design: Recent developments. Educational Psychologist, 38(1), 1–4. https://doi.org/10.1207/S15326985EP3801_1

Sweller, J. (1988). Cognitive load during problem solving: Effects on learning. Cognitive Science, 12(2), 257–285. https://doi.org/10.1207/s15516709cog1202_4

Sweller, J., Ayres, P., & Kalyuga, S. (2011). Cognitive load theory. Springer.

Young, J. Q., Van Merrienboer, J., Durning, S., & Ten Cate, O. (2014). Cognitive load theory: Implications for medical education. Medical Teacher, 36(5), 371–384. https://doi.org/10.3109/0142159X.2014.889290

Last Updated on May 7, 2026 by Maureen Osuna, MSN, RN