Book summary
Why We Sleep
Unlocking the Power of Sleep and Dreams
by 20 min read
About this book
You may think a late night is just a tradeoff between work and rest, but your brain and body keep paying after you wake up. The surprising part is that the biggest damage often comes from sleep loss you stop noticing, while the systems that should protect you quietly slip out of sync.
What you'll learn
- You’ll recognize the signs of chronic sleep loss even when you feel used to it, so you can stop relying on a bad internal gauge.
- You’ll adjust light, caffeine, alcohol, and bedtime habits to protect sleep quality instead of only trying to sleep longer.
- You’ll tell the difference between ordinary sleep trouble and problems that need medical evaluation, such as obstructive sleep apnea.
- You’ll use the book’s NREM, REM, and sleep-pressure framework to understand why sleep affects memory, mood, appetite, and long-term health.
Themes
- Sleep deprivation
- REM sleep
- Memory consolidation
- Health effects
- Sleep disorders