Psychology GCSE

Circadian rhythms

What Circadian rhythms means in Psychology GCSE, as defined for Pearson Edexcel.

Definition of Circadian rhythms

Check what you remember

Read the wording for your board, then hide it and explain Circadian rhythms in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

Reference: Pearson Edexcel

Bodily rhythms that operate on a 24-hour cycle, regulating the sleep-wake cycle.

Pearson Edexcel · Sleep and dreaming (study guide)

Topics that use Circadian rhythms

Sleep and dreaming (Pearson Edexcel GCSE)

Related terms

Using Circadian rhythms in the exam

Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

Practise Psychology questions

Create a free account to answer exam-style questions on this topic and get feedback on your answers.

Start free

A week of Premium from your first lesson · Then the free plan continues · No card, no charge

All Psychology GCSE terms