About half of children who go to the ER with head injuries get this radiation-heavy scan, and clinical observation first could help some who don't really need a CT avoid it.

NPR: Doc Groups Issue List Of Overused Tests, Therapies

On a business trip a few weeks later, it hit me again, so bad this time that I was racing down the shoulder of the interstate trying to get to the ER.

CNN: Anxiety, you're not the boss of me

In contrast, Cool-er sucks up just about anything you can get onto your PC via a USB port.

FORBES: Why Kindle Will Have To Change

And when they get sick, they go to the ER instead of calling their primary care doctor.

FORBES: Failure To Communicate: Why Seniors Are Readmitted To The Hospital So Often

We're all phish bait, so never take anything you get in your inbox at phace -- er... sorry -- face value.

CNN: The world's most poisonous phish

And instead of having a doctor to go to, to get pain medication, I sat in the ER for eight hours.

CNN: Transcript of June 'CNN Money Summit: Money & Main St.'

"If any of my other kids get sick, I'm terrified about taking them to the ER, " says Jeffers, who recalls watching his daughter deteriorate in his arms.

CNN: Harmed in the hospital? Should you sue?

"It is always, always better to call the pediatrician before going to the ER for anything but life-threatening emergencies, " injuries or conditions that, if they didn't get medical attention, could result in death, says Lara Zibners, M.

CNN: 10 common kid health emergencies and what to do