Get a breath of this not-so-fresh air.

Japanese and US researchers have developed a groundbreaking treatment for people who can’t breathe through their lungs — by delivering oxygen where the sun doesn’t shine.

Results from the first human clinical trial testing the so-called “butt breathing” technique suggest that it’s safe and well-tolerated, pushing the cheeky alternative one step closer to becoming a real lifesaver. 3

It might sound like a sketch from “Saturday Night Live,” but the Ig Nobel Prize-winning idea actually steals a page from nature’s playbook.

Loaches, a type of bottom-dwelling fish, usually breathe through their gills. But when oxygen runs low, they’re known to swim to the surface, gulp air and swallow it.

That air moves through their digestive tract, where ox

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