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We've Gone From Over 100 Countries Down To 4. This Is A Good Thing, I Swear.

It's pretty amazing that vaccines have done so much good for the health of kids around the world. On the left side of this infographic, you'll see just how far we've come. We can totally make it to zero; I'm sure of it!

We've Gone From Over 100 Countries Down To 4. This Is A Good Thing, I Swear.
SOURCE: iSTOCK

Usually the greatest fear after a wild night of partying isn't what you said that you might regret, but how you'll look in your friends' tagged photos. Although you left the house looking like a 10, those awkward group selfies make you feel more like a 5, prompting you to wonder, "Why do I look different in pictures?"

It's a weird phenomenon that, thanks to selfies, is making people question their own mirrors. Are pictures the "real" you or is it your reflection? Have mirrors been lying to us this whole time??

The answer to that is a bit tricky. The good news is that there's a big chance that Quasimodo-looking creature that stares back at you in your selfies isn't an accurate depiction of the real you. But your mirror isn't completely truthful either.

Below, a scientific breakdown that might explain those embarrassing tagged photos of you:

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