From LED face masks to recovery saunas, red light therapy is everywhere.

Proponents say it can regrow hair, reverse aging, treat depression, and slow cognitive decline.

It looks like a classic wellness grift, but this one has a twist.

And in our extended content for premium members, why the push for energy efficient lighting

may be causing problems for our health.

That's today on Skeptoid.

I'm Rachel Fultman, and I host a podcast from Popular Science called The Weirdest Thing I Learn

This Week. Every other week, I circle up with guests like Bill Nye, Josh Gomblman, Mary Roach,

and many more to prove that the lofty and noble pursuit of science can also be profoundly weird.

From flying Ford Pintoes to the world's most illegal cheese,

the weirdest thing I learned this week is the ultimate source for all things interesting,

informative, and, most importantly, freaking weird.

Check out the weirdest thing I learned this week, wherever you get your podcast.

Come on over whenever you're ready to get weird.

You're listening to Skeptoid. I'm Ashley Hamer Pritchard from Skeptoid.com.

This episode was sponsored by Daniel Laurie and is dedicated to Lisa Baby. To personally sponsor your own

episode, come to Skeptoid.com slash sponsor.

Welcome to the show that separates fact from fiction, science from pseudoscience, real history from fake history, and helps all of us make better life decisions by knowing what's real

and what's not. Walk into an upscale gym, swing by a spa, or scroll social media these days, and you're

bound to find it. Panels of red and near-infrared LEDs and everything from handheld face

wands to full-body setups the size of a closet door. Proponents say red light therapy can

reduce wrinkles, regrow hair, accelerate muscle recovery,

...