Describe what happens to your heart rate, body temperature, and brain wave activity as you progress from stage one to stage four of non-REM sleep.

As you progress from stage one to stage four of non-REM sleep, your heart rate decreases, your body temperature drops, and your brain wave activity slows down.

The video mentions that non-REM and REM sleep engage in a 'cerebral war' throughout the night. How long does one full cycle of this 'war' last, and how does the composition of non-REM and REM sleep change throughout the night?

One full cycle lasts approximately 90 minutes. In the first half of the night, the cycles are comprised mostly of deep non-REM sleep (stages 3 and 4), while in the second half of the night, the cycles contain more REM sleep and stage 2 non-REM sleep.

According to the video, which of the following is NOT a primary function associated with REM sleep?

Physical recharge of the immune system

Exploring the Stages of Sleep

Grade 10th Grade · Health · 30 min

What's Included

Learning Objective

I can describe what happens to my body and brain during each stage of sleep.

Warm-Up Video

TED · 4:48

A walk through the stages of sleep | Sleeping with Science, a TED series

Guided Notes

3 key concepts

1
Sleep can be divided into two main types: non-REM sleep and REM sleep.
2
During deep non-REM sleep, the body recharges its immune system and overhauls its cardiovascular system, while the brain consolidates memories.
3
Most vivid dreams occur during REM sleep, which also provides emotional first aid and boosts creativity.

Practice Questions

3 questions · Multiple choice & Short answer

Exit Ticket

Quick comprehension check

“Describe two important processes that occur in your body and brain during stage 3 sleep.”

Complete Lesson Package

Get all 3 ready-to-use resources:

Teacher GuideComplete lesson plan

Student DocPrintable student handouts

SlidesReady-to-use presentation

Exploring the Stages of Sleep

What's Included

Learning Objective

Warm-Up Video

Guided Notes

Practice Questions

Exit Ticket

Complete Lesson Package

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