We're sure many of you are scrambling to have your eyeballs lasered by a doctor who sounds like a gag from The Simpsons as soon as humanly possible, but don't get in too much of a rush -- the procedure's still in the testing stages. The good news, though, is that all preliminary tests have turned out well, at least according to Homer. He's tested it on animals, cadavers, and Mexicans (seriously), all without a single complaint. The better news is that if you just can't wait until the procedure gets the official OK from The Man, you can head straight to the not-at-all-evil-sounding Stroma Medical website and volunteer to be a guinea pig for one of the good doctor's trial runs.

A word of warning: As of now, the procedure is permanent, so if for some reason you find your new appearance freakish and want to change it back ... tough shit. Freak.

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Who could ever love a monster such as her?

First, there's a team from the University of Alberta in Canada (where hockey-related tooth loss strikes virtually every male before age 15) who say they've managed to regrow broken teeth by using ultrasound emitters. Seriously, they just point sound waves at your teeth and they grow back. The procedure worked so well on rabbits that the scientists figured, screw it, why not scale up the difficulty and try it out on an animal whose entire diet isn't just cabbage and water? So they tested a variant of their ultrasound method on humans and found that it worked, even when the root itself was damaged. The system consists of a "miniaturized system-on-a-chip" that constantly barrages the root of your tooth with good tooth vibes as you wear it inside your mouth, and in no time ("no time" meaning "about a year") you're right back to popping beer bottle caps with your pearly whites.

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Which also happens to be the mating call of Alberta, Canada.

More recently, a bunch of researchers from Columbia University and Nova Southeastern University in Florida have said they can regrow teeth using dental stem cells. When a patient loses a tooth, the docs simply plop some dental stem cells into a tooth-shaped scaffold and wait for the stem cells to work their magic. The patients can grow the new tooth either inside their own mouth or outside the body, but either way, within nine weeks they've got themselves a shiny new food masher. And no, the stem cells being used for this procedure don't come from embryos. Instead, they're collected from discarded teeth or other "dental waste," which we sincerely hope isn't as gross as it sounds (but probably is).

Now, injecting air directly into the blood is a little tricky. Normally, some nasty side effects can occur if you just straight up shoot air into your veins, like, um ... an agonizing death. So what these guys did was design tiny microparticles that they could fill with oxygen. Then they surrounded those microparticles with lipids (fats) and put them in a liquid solution to help them blend in with the blood. Finally, to test whether or not their Frankenoxygen worked, the docs injected the solution filled with their tiny lifesavers into animals with low blood oxygen levels.

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"Jenkins, get in here! It's your turn to strangle Hopper."

When the animals' tracheas were completely blocked, which would normally earn a human a not-so-fashionable throat piercing, the injection of microparticles was able to restore their blood oxygen to completely normal levels in mere seconds. The breathing fix wasn't permanent, as the animals needed to start breathing the old-fashioned way (i.e., not from a hypodermic needle) after 15 minutes. However, for 15 whole minutes, the animals stayed alive without taking a single breath and had a reduced incidence of complications such as heart attacks or other organ injury.

The best part is that, since the solution can be administered via syringe, it's completely portable. This means it can be carried by paramedics and administered within moments of arriving at the scene of the autoerotic asphyxiation gone wrong.

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It's a bold new day for the sciences of medicine and masturbation.

OK, so chances are you're not reading Cracked with your smartphone in one hand while using your teeth to tighten a belt around your "shootin'-up arm," but even so, it's probably not news to you that heroin is one of the most addictive substances in the world. But really, it's all our stupid bodies' fault: Chemicals inside us bond to drugs such as heroin, then release happy juice into our systems, to the point that our bodies crash once the drugs are gone and we end up needing more and more of the stuff. If you're one of the unlucky few whose body happens to bond well with illicit arm candy, there's not a damn thing you can do about it ... except for take a pill to block your addiction, if science has its say.

"Pills? I don't know, I'm kind of picky about what I put into my body."

That's right: A bicontinental team of researchers comprised of Aussies at the University of Adelaide and Yanks at the University of Colorado have managed to rewire the brain and successfully unaddict it to heroin (and morphine, for good measure). How did this team of geniuses accomplish what thousands of hours of interventions, rehab stays, and stern talks from jaded guidance counselors never could? Brain hacking.

Which does not involve an ax, as we learned through some tragic accidents.

The researchers noticed that heroin bonded to an immune receptor named Toll-Like Receptor 4 (TLR4), which acts as "an amplifier for addiction." So they developed a drug called (+)-naloxone (presumably named by an accounting computer that moonlights in pharmaceuticals), which once and for all shuts down that TLR4 asshole, thereby changing the chemistry in the brain and disrupting its addictive tendencies.

You'd think that all this tampering about with your noggin juices could lead to some serious complications, like believing that your wife is a toaster or that The Learning Channel is educational, but the new drug appears to target only TLR4, while leaving all the law-abiding neural receptors intact. As explained by one of the lead scientists, "Our studies have shown conclusively that we can block addiction via the immune system of the brain, without targeting the brain's wiring." And as if that weren't enough, this new drug is also a great pain reliever. What do you want to bet it will turn out to be addictive?

His new boat is counting on it.