Equipped with lenses specially designed to allow long wave blue light to pass through, these new "Happy Lens" sunglasses from Spy claim to boost your mood, alertness and help you sleep better at night. Do they work?
An interesting read via Gizmodo
Equipped with lenses specially designed to allow long wave blue light to pass through, these new "Happy Lens" sunglasses from Spy claim to boost your mood, alertness and help you sleep better at night. Do they work?
An interesting read via Gizmodo
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