traffic

One night of quiet road noise stiffens blood vessels by morning
In 74 healthy adults sleeping in their own beds, 30 to 60 simulated traffic pass-bys at 41 to 44 dB, below WHO night limits,…
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Tuesday, October 27, 2026 · The Sunday letter

In 74 healthy adults sleeping in their own beds, 30 to 60 simulated traffic pass-bys at 41 to 44 dB, below WHO night limits,…