Neuroscience of sleep

High school (ages 12+)
Human Body

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/neuroscience-of-sleep

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the primary brain clock?The suprachiasmatic nucleus (SCN) in the hypothalamus regulates circadian rhythms
2. What is the key sleep functions?Memory consolidation, synaptic plasticity, glymphatic waste clearance, and emotional regulation
3. What happens in my brain when I fall asleep?When you fall asleep, parts of your brain like the hypothalamus, brainstem, and thalamus work together to stop the awake signals, letting your brain rest and change its brain waves.
4. Why do we dream during REM sleep?During REM sleep, the brain keeps active brain waves and lets the brain create dreams, helping it practice and remember feelings and ideas.

Circadian Rhythms: The body's natural, internal 24-hour cycle that regulates sleep-wake patterns and other physiological processes.
Synaptic Plasticity: The ability of synapses (connections between neurons) to strengthen or weaken over time, crucial for learning and memory.
Slow-Wave Sleep (SWS): The deepest stage of NREM sleep, characterized by slow delta brain waves, vital for physical restoration and memory consolidation.