Explore the changes in sleep patterns over time. Pupils learn how the changes in lighting have triggered adaptations in sleep patterns. Modern lighting mimics the light waves of the sun, which suppresses melatonin production and makes sleep more difficult.

Concepts

sleep, the brain, light, light waves, evolution, adaptations

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Additional Tags

science

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Instructional Ideas

• After watching the video, make a list of pros and cons of modern lighting
• Have individuals log their electronic use and their nightly sleep time to discuss prior to the video

Classroom Considerations

• Expects an understanding of specific hormones

• This video is hosted on YouTube

Pros

• Presents a topic relevant to teenage learners
• Includes a historical perspective 

Cons

• None

Common Core

SL.9-10.2 RST.9-10.7