What is your opinion on sleep-related technologies (such as sound-based tools, apps, or trackers) for improving sleep quality?, Some animals can sleep with only half their brain at a time, like dolphins and fur seals. What does this show about how different species have adapted to survive while sleeping?, Dreams usually happen during REM sleep. Do you think dreams have real meaning, or are they just random activity in the brain?, Researchers found that people with insomnia often have restless REM sleep and wake up feeling emotionally tired. Why do you think emotions and sleep are so strongly connected?, Scientists are testing ways to improve sleep quality, such as using “pink noise.” Would you try a sleep technology like that? Why or why not?, Many modern habits—like screen time, caffeine, or stress—can make it hard to sleep. Which of these affects you the most, and how do you deal with it?, Randy Gardner once stayed awake for 11 days for an experiment. What happens to your body and mind when you don’t get enough sleep?, Caffeine stops the brain from feeling sleepy by blocking a chemical called adenosine. How do you manage your caffeine use, and does it affect your sleep?, If there were a pill that could replace sleep safely, would you take it? Why or why not?, After learning more about sleep, what’s one habit you would like to change to improve your own rest?.

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