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Hot Nights Are Stealing Our Sleep | Science News
This summer’s extreme heat isn’t just baking daytime temperatures—it’s roasting our nights too. Overnight lows in places like Phoenix are barely dipping below 97°F, trapping bodies in a relentless heat cycle that’s eroding sleep and health. Cities from Flagstaff to Reno are seeing decades of sleep loss, while global hotspots in the Middle East and India lose entire nights to the heat. Even with AC, not everyone can cool down—and buildings built for cold climates now trap heat. Experts estimate Americans lose 56 hours of sleep yearly, with ripple effects on mental health, heart disease, and…
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