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No, that's not an ice sculpture—it's Derek Hough!

The Dancing With the Stars hottie posted a nearly-naked photo of himself to Instagram Monday, rightfully putting those chiseled abs on display. If you can avert your eyes from Derek's pecks for a second, you'll see that he's standing in a lab/medical facility of sorts. No, he's not being cloned (yet)—he's undergoing cryotherapy!

If you're not in the L.A.-area, you might be wondering what the heck is cryotherapy. It's—well—let's backtrack a moment. Derek tagged Ryan Manning D.C., a concierge chiropractic physician based in (you guessed it) Los Angeles. According to Dr. Manning's Cryohealth website, cryotherapy "is the local or general use of low temperatures in medical therapy."

It looks like Derek was stepping out of a Cryosauna (as opposed to a Cryochamber)—either way, though, that means he was having whole body Cryotherapy administered. This is when, according to Dr. Manning's website, "the body is exposed to ultra-low temperatures (-200 to -240 F)" for "a short duration of 1.5-3 minutes which lowers the client's skin surface temperature significantly and stimulates receptors."

Brrrr! He's not alone, though. Lindsay Lohan indulged in some Easter Sunday cryotherapy, and Mandy Moore and Minka Kelly have been freezing their BFF booties off since before it was trendy.

And I'm obsessed. Thanks @anitakojewelry! #cryotherapy #bringiton

A photo posted by Mandy Moore (@mandymooremm) on

Those Cryobooths certainly make for some cool Instagram pics, huh?  And that's not all! According to CryoHealth's website, "Clients report that the experience is invigorating and improves a variety of conditions such as psychological stress, insomnia, rheumatism, muscle and joint pain, and various skin conditions.*"

What's that asterisk for? The statements above have not been evaluated by the FDA, notes Derek's doctor's site, adding, "These products are not intended to diagnose, treat, cure or prevent any disease."

Cool.