Learning in itself can be mentally stimulating, but it doesn’t have much of an effect if we forget most of it afterward. To remember more, memory experts recommend practicing spaced repetition.
Spaced repetition is a learning technique where you review material in increasingly spaced intervals to improve long-term retention.
In about 1 hour of learning something new, you should try to recall it, then again in 24 hours, then again within 7 days, and then once within 3 months. This helps you transfer knowledge from your short-term memory to your long-term memory.
When to do it?
• After reading an article or a book
• After watching a lecture or a video
• After listening to a podcast
• After having an interesting conversation with someone
• After taking part in a course or a lecture
How much knowledge do you lose when not practicing active remembering?
• You forget ~50% of what you’ve learned in 1 hour.
• You forget ~70% in 24 hours.
• You forget ~90% within a week.
• You forget ~100% after three months if no “recitation” ever is done of the learning.
What does writing do to your brain in regards to learning?
Writing guides your brain to recognize, construct, and extend its patterns. Prior knowledge from things you’ve learned or experienced can be activated to link with new input. So, practicing remembering through writing will increase your creativity and make you more original.
Writing helps to construct what scientists call conceptual memory networks. Here’s what neurologist Judy Wills has to say about it: “The construction of conceptual memory networks builds the most valuable neural architecture a brain owner can have. These networks serve as “nets” to catch and hold new input with similar patterns and “work” when activated for creative transfer (the use of information learned in one context for application in a new context).”
Don’t take notes or highlight while you’re reading:
We’ve all read a sentence and then written it down. That’s unfortunately not very helpful in solidifying the learning into our long-term memory.
Instead, you can read a couple of paragraphs or an essay, depending on the density of the book. Then close the book and think about it by writing what you remember. Taking notes after reading or listening forces you to practice remembering. In this way, you connect the freshly learned material to your prior knowledge, making it easier to recall afterward.
In short, you can remember things when you’ve thought them through.