How Memory Works and Five Easy Steps to Boost Your Recall

National Geographic summarizes memory as a three-stage system in which sensory memory, working memory, and long-term memory each rely on distinct brain regions, from primary sensory cortices to the prefrontal cortex, hippocampus, and amygdala. The piece also walks through five practical steps to boost both working and long-term memory, including putting the phone away, reducing stress, chunking information, using retrieval practice, and spacing study sessions to combat the forgetting curve, with examples of how retrieval strengthens memory by linking material to cues and contexts. It emphasizes that memory is strategy as much as innate ability, and that small, consistent changes can deliver meaningful gains in real-life recall. Original publisher: National Geographic.

Introduction: memory architecture

Memory operates across three stages: sensory memory (lasting milliseconds), working memory (a short-term workspace for holding and manipulating information), and long-term memory (lasting minutes to a lifetime). Different brain regions contribute to each stage. Sensory memory engages the brain’s primary sensory cortices (visual, auditory, etc.), working memory relies mainly on the prefrontal cortex which supports attention and reasoning, and long-term memory involves the hippocampus and temporal lobes for facts or life events, with the amygdala, cerebellum and basal ganglia helping with emotional or procedural memories. The article notes that working memory often acts as a conscious gateway to long-term memory but has limits, commonly citing the classic idea that we can hold roughly seven chunks of information at once, a notion attributed to George Miller. Retrieval-based strategies can strengthen memory by creating new prompts and cues, thereby shaping how information is stored and accessed.

1 Put your phone away

One of the first practical steps to enhance memory is to minimize smartphone interference. The presence of a phone nearby – even face down and on silent – can reduce performance on memory and reasoning tasks because part of the brain may continually monitor the device. Resisting the urge to check notifications consumes mental resources, which researchers describe as a “brain drain” effect. The recommended solution is simple: put the phone in another room when you need to focus. Out of sight really does free up mental capacity.

"Out of sight really does free up mental capacity." - Author

2 Stop your mind racing

Stress and anxiety take up valuable mental space and can impair working memory. When worries or racing thoughts dominate, working memory is already partially engaged. Relaxation training and mindfulness practices can improve both working memory and academic performance, probably by reducing stress levels. If meditation feels intimidating, breathing techniques such as cyclic sighing can calm the nervous system and create better conditions for learning.

"Relaxation training and mindfulness practices can improve both working memory and academic performance, probably by reducing stress levels." - Author

3 Get chunking

Chunking is the process of grouping information into meaningful units to expand working memory’s capacity. You likely already chunk numbers or lists when remembering them. In a presentation, chunking can help the audience remember key points by organizing case studies into a few themes, each with a short headline and a single takeaway. The article suggests repeating this structure on each slide: one idea, a few supporting details, then move on. Organizing information into meaningful patterns reduces cognitive load and makes it more memorable.

"Chunking would involve grouping ten case studies, say, into three or four themes, each with a short headline and single key takeaway." - Author

4 Become a retriever

Retrieval practice helps counter forgetting by reinforcing memory through self-testing and recall rather than rereading. Memory strengthens through associations: each successful retrieval links the material to new prompts, examples and contexts, creating more cues for access. The forgetting curve, demonstrated by Hermann Ebbinghaus, shows rapid decline after learning, but retrieval-based approaches can disrupt this decay and improve long-term retention.

"Memory works through associations. Each time you successfully retrieve information, you link the material to new prompts, examples and contexts." - Hermann Ebbinghaus, German psychologist

5 Give yourself a break

Spacing study or practice across time improves memory compared with massed sessions. The article advises scheduling revision with downtime, citing a rule of thumb that gaps between sessions should roughly equal 10-20% of the time left before a deadline. Spacing shifts the forgetting curve to enhance retention and emphasizes that memory performance depends on strategy and deliberate practice, not just IQ.

Conclusion: memory as strategy

The piece closes with a reminder that small changes in how you study or work can meaningfully improve what you remember and how long it lasts. Memory, it argues, is not simply a measure of intelligence but a set of practical strategies anyone can adopt.