Cognitive Load

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Cognitive Load

The 'working memory' required to complete a task.

Featured in 5 UX Bites

Similar psychology:

Likely impacts:

Productivity & Efficiency

Effort & Motivation

Happiness & Enjoyment

Input Quality

Discomfort & Frustration

Last updated: 26/09/2026

How to utilise this in your designs

You could offer a stripped-back 'lite' mode that hides advanced interface components, lowering cognitive load for users who don't need every tool.

Stock detail page. Switching on a "Lite" mode, "Simple and Easy Experience" for "Long-term Investment", strips the chart of volume bars, axis labels, market stats and content tabs, leaving only price, monthly change and time ranges.

Example from

WeBull

When asking for an effort rating, try anchoring each option to something familiar, e.g., being able to talk, so users spend less working memory interpreting the scale.

Form for rating workout effort. Dragging a 1–10 slider updates the effort level and a plain-language description tied to talking ability: "walking slowly" at 1, "hard to talk" at 7, "no talking" at 9.

Example from

Nike

You could experiment with translating a weekly weight-loss target into the time it'll take to reach a goal, so users don't hold the maths in working memory.

Onboarding. For "How soon do you want to reach your goal?", dragging a weekly weight-loss slider from "Slow" towards "Fast" updates the estimate live, from "10.9 months" to "4.7 months", with a note on how hard the calorie goal becomes.

Example from

Food Llama

During onboarding, you might convert a daily reading target into the number of books it adds up to over a month, reducing the cognitive load of picturing the outcome.

Onboarding. A scroll picker asks "How much time would you like to spend on growth daily?"; a label beside it translates the chosen minutes into books, changing from "25 books per month" at 10 min to "38 books per month" at 15 min.

Example from

Headway

Try framing raw game scores relative to other players, so users can judge performance at a glance, rather than holding benchmarks in working memory.

Dashboard. Post-game "Performance Insights" compare the player with others at the same rank: a bar chart shows solving time beating 96% of users, and a bell curve places the score above just 3%, with encouraging copy.

Example from

Peak

Possible impacts

Lowering cognitive load in stressful or complex moments could reduce churn, as people may be less likely to abandon something that doesn't feel mentally draining.

As seen in:

WeBull It's WeBull, but lite

Food Llama Contextualised weight loss (or gain)

Cutting unnecessary cognitive load might help users complete tasks faster, as less working memory goes on interpreting the interface and more on the task itself.

As seen in:

Fantastical Stripping out times

Lego Keeping track of your totals

When a task demands less mental effort, users may feel more motivated to start and finish it, particularly during onboarding, where patience is often limited.

As seen in:

Food Llama Contextualised weight loss (or gain)

Headway Daily commitment to reading

Keeping cognitive load within a 'Goldilocks zone' could make an experience feel more enjoyable, as users stay engaged without tipping into overload.

As seen in:

Sentry An interactive hero H1

ConjuGato Bursting with joy

Lower cognitive load in sign-up and onboarding forms could improve input quality, as overloaded users may just pick defaults or the easiest option over an accurate one.

As seen in:

Nike Contextualising the effort

Food Llama Contextualised weight loss (or gain)

Reducing cognitive load may lead to less frustration and stress, as being under heavy mental strain is uncomfortable, particularly on tasks that aren't enjoyable.

As seen in:

Vocabulary Your sound is off...

ElevenReader Steering you to your downloaded content

Written by Peter Ramsey

Consultant to 100+ companies

Published: 01/09/2023

How to utilise this in your designs

You could offer a stripped-back 'lite' mode that hides advanced interface components, lowering cognitive load for users who don't need every tool.

Example from

WeBull

When asking for an effort rating, try anchoring each option to something familiar, e.g., being able to talk, so users spend less working memory interpreting the scale.

Example from

Nike

You could experiment with translating a weekly weight-loss target into the time it'll take to reach a goal, so users don't hold the maths in working memory.

Example from

Food Llama

During onboarding, you might convert a daily reading target into the number of books it adds up to over a month, reducing the cognitive load of picturing the outcome.

Example from

Headway

Try framing raw game scores relative to other players, so users can judge performance at a glance, rather than holding benchmarks in working memory.

Example from

Peak

Possible impacts

Lowering cognitive load in stressful or complex moments could reduce churn, as people may be less likely to abandon something that doesn't feel mentally draining.

As seen in:

WeBull It's WeBull, but lite

Food Llama Contextualised weight loss (or gain)

Cutting unnecessary cognitive load might help users complete tasks faster, as less working memory goes on interpreting the interface and more on the task itself.

As seen in:

Fantastical Stripping out times

Lego Keeping track of your totals

When a task demands less mental effort, users may feel more motivated to start and finish it, particularly during onboarding, where patience is often limited.

As seen in:

Food Llama Contextualised weight loss (or gain)

Headway Daily commitment to reading

Keeping cognitive load within a 'Goldilocks zone' could make an experience feel more enjoyable, as users stay engaged without tipping into overload.

As seen in:

Sentry An interactive hero H1

ConjuGato Bursting with joy

Lower cognitive load in sign-up and onboarding forms could improve input quality, as overloaded users may just pick defaults or the easiest option over an accurate one.

As seen in:

Nike Contextualising the effort

Food Llama Contextualised weight loss (or gain)

Reducing cognitive load may lead to less frustration and stress, as being under heavy mental strain is uncomfortable, particularly on tasks that aren't enjoyable.

As seen in:

Vocabulary Your sound is off...

ElevenReader Steering you to your downloaded content