A quiet ritual is spreading from bedroom to bedroom. It doesn’t involve a new pill or an expensive gadget—just a strip of aluminum foil placed beneath a pillow before sleep. Simple, unusual, and strangely compelling, the practice has attracted people looking for an easier way to unwind at night.
Some say it calms their thoughts. Others believe the foil protects them from invisible waves in a world filled with signals and noise. Science offers little support for those claims, yet the ritual continues. The appeal may not really be about the foil itself. Instead, it may be about what the simple action represents: a small sense of control in a world that can feel overwhelming, especially at the end of a long and restless day. And the explanation for why some people feel better afterward may have surprisingly little to do with aluminum.
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