Speaker A
I want you to imagine a top student at a university like Cambridge, which is where I study, or Oxford, or Harvard, or MIT. How long do you think they study every single day? Now, when I've asked this online on my social media, most
Learn how neuroscience-backed techniques like active recall, spaced repetition, and the 24-hour rule can boost your study efficiency.
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Key Takeaways
- Active recall and spaced repetition are critical for effective learning.
- Review new information within 24 hours to enhance retention.
- Use your brain's peak cognitive window in the morning for challenging tasks.
- Prioritize difficult tasks first to avoid decision fatigue.
- Reflect on study sessions to optimize techniques and improve outcomes.
What the video covers
- Top students do not necessarily study for extremely long hours; efficient study routines matter more.
- Not all productive study activities lead to effective learning; passive methods like rereading and highlighting are less effective.
- Active recall and spaced repetition are the two most effective learning techniques according to neuroscience.
- Active recall involves retrieving information from memory without notes, strengthening neural pathways.
- Spaced repetition helps transfer information from working memory to long-term memory by revisiting material at regular intervals.
- The 24-hour rule emphasizes reviewing new information within 24 hours to prevent steep memory decline.
- Peak cognitive performance occurs within 30 minutes to 2 hours after waking, making it ideal for tackling difficult tasks.
- Decision fatigue accumulates throughout the day, so front-loading hard tasks improves productivity.
- The 'eat the frog' technique prioritizes completing the hardest task first to maximize mental resources.
- Reflection after study sessions helps identify effective techniques and improve future study habits for smarter learning.
Chapters
- 00:00Introduction and common misconceptions about study hours
- 00:27Effective study routine overview
- 00:47Why some study methods don't help learning
- 01:14Active recall and spaced repetition explained
- 02:02The importance of retrieval in learning
- 02:22Active recall as exam preparation
- 02:28The 24-hour rule for memory retention
- 02:45How the 24-hour rule aids long-term memory
- 03:04Why the brain needs signals to retain information
- 03:19Additional study habits to complement the 24-hour rule
Full Transcript — Download SRT & Markdown
Speaker A
people will say between 10 and 14 hours per day. I've managed to consistently get top grades, full marks in some of my exams, by simply studying for 4 hours per day.
Speaker A
And this is the routine that's going to allow you to do the same. Now, the biggest thing that you should take away from this video is that the pitfall of most students is that they assume that because something is productive, it is
Speaker A
helping them learn. That is just not the case. Not everything that you do in the process of learning has equal weighting.
Speaker A
And some of the things that some students do thinking is beneficial actually do absolutely nothing. Reading through notes is productive, highlighting is productive, but they're not actually helping you learn whatsoever. What helps you learn? Two things. Number one, active recall. This
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is where you take information that is stored in your brain and put it onto a sheet of paper, whether through blurting or answering past paper questions, without looking at any notes. And two, spaced repetition. For when you need to
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look at the notes to get the information into your head, you want to be doing it at pretty consistent regular intervals so that you're constantly revisiting it and rebuilding those neural pathways in your brain, strengthening them, and by
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strengthening those neural pathways, it's easier and faster and more efficient for you to retrieve the information. Because your brain inherently learns through retrieval and not exposure. If you reread something 10 times, that is worse than simply answering a question on it once, because
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that's retrieval. That's how your brain actually works. You have to go over those neural pathways to collect the information. If you just look at the information, it's not going over those neural pathways, and that's why these things don't work. And fundamentally, when
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you're studying for an exam, you have to be thinking, "Okay, what does an exam want from me?" Well, an exam wants you to take information out of your own brain and put it on the sheet of paper.
Speaker A
That's active recall. So, if you don't train your active recall in your studying, you're not going to be able to do it in the exam. For me, the singular habit that completely transformed my abilities as a student is what is
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known as the 24-hour rule. It's as simple as it sounds. Within 24 hours of learning something new, I revisit it. If I've seen something new in a lecture, in a supervision, if I came across it in class notes, then
Speaker A
within 24 hours, I'm reviewing it. But, I'm not reviewing it for 2 or 3 hours.
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No, I'm reviewing it for 10 or 20 minutes. I can do this because it's within that first 24-hour window. It's still super fresh in my brain, but it's in my working memory. It's not really transferred into my long-term memory. By
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revisiting it, I'm enabling that transfer into long-term storage. Because research into memory consistently shows that the steepest decline in retention happens immediately after learning.
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Basically, studies have shown that this translates to roughly 75% of new information being lost within 24 hours.
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Why? Because there's no signal in your brain that that information is actually needed, that it's actually valuable information for you to have.
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To signal it to your brain, the best way of doing this is to go back to that information and go over it again. That is what the 24-hour rule lets you do.
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Together with my 24-hour rule, I will do one other thing that I think is really important.
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And this comes from the fact that whether you like it or not, whether you feel like you're a night owl or you work best at midday, your brain's peak cognitive capacity is after waking up.
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From about 30 minutes after waking up to about 2 hours after waking up, you've got a really cool window. And the reason why this is so powerful is because during the course of a day, you make a lot of decisions. Those decisions create
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a bit of a mental tax in your brain. Every time you make a decision, you're using up cognitive resources, and this creates what neuroscientists call decision fatigue by the end of the day.
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And that inhibits your ability to engage in complex decision-making and logical reasoning. So, you want to be really front-loading your day with these tasks, doing it in that peak window that you have in the morning. And that is why I
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do something known as eating the frog. Every evening, I will write a little to-do list. These are my tasks for tomorrow. I will then highlight one task. That is my frog. My frog will be my hardest task, the task I'm most
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likely to avoid, the task that I most need to get done that day. And it's going to get done first, and I'm not going to allow myself to do any other task until that one is complete.
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This is because most students will spend their best mental hours either scrolling on their phone or doing easy tasks like admin. Save those easy tasks for later on when your brain is tired, and do the hard things first. And my final tip for
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you is that the biggest difference between the most successful students and the least successful students has nothing to do with the material that they're studying.
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And it also doesn't have anything to do with what they're doing whilst they're studying.
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It has everything to do with what they're doing after they study. So, consistently, the most successful students that I've met, and I've been incorporating this most frequently when I've been at Cambridge, but I also did it during my studies before that,
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is to engage in reflection. Just 2 to 5 minutes after a long study session, I will think to myself, "Okay, what went well? Like, when was I revising, and I felt like I was in flow state? When did I not feel like I was
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really doing well? Is there a correlation? Was I doing a particular study technique that allowed me to reach flow state? Was I most distracted with a different technique, perhaps?" And by engaging in these reflections, I can actually gauge what study techniques
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work best for me, and what information feels easy, what feels good, and what feels much more difficult. And then I can adjust subsequent sessions accordingly. Because if you don't take a step back to reflect, you're not going to be able to iterate
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your processes. And iterating your processes is how you converge on those study cycles and techniques that work best for you. And that lets you do what most people will know as studying smarter, not harder. Basically, being able to cover the same amount of content
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in less time because you're doing what works for your brain. So, if you want to become a bit of an academic weapon, like myself, then these tips will hopefully help you be able to do that. For a bit
Speaker A
of background, I'm in my second year studying at Cambridge University. I'm reading Land Economy, which is basically economics and law. It's a very interesting course. If you do want to know more about it, then do leave a comment and I'll explain. And I hope
Speaker A
this video has been super, super helpful. As always, please do subscribe if you enjoyed it, and I will see you in the next video.
Topics:neurosciencestudy tipsactive recallspaced repetition24-hour ruledecision fatiguestudy routinelearning techniquesCambridge Universityacademic success
