Health

It's a diagnosis nobody in grad school would ever expect.

Arijit Guha, who's working on a doctorate at Arizona State, felt sick after coming back from a trip to India in early 2011. His severe stomach pain, which he thought was probably from a bug he caught on the journey, turned out to be caused by colon cancer. He was 30.

You may not have heard of pectus excavatum — or "sunken chest," as it's commonly known — but there's a good chance you know someone who was born with it.

It's the most common deformity of the chest wall, affecting roughly one in 500 people — boys much more often than girls. And while sunken chest can be corrected with surgery, the procedure is invasive and very painful. Many families won't do it.

One rite of passage most teenagers look forward to and parents dread is learning how to drive. Car crashes are the No. 1 killer of teens by far, on the order of five times more than poisoning or cancer. Does that mean you should scare the daylights out of teens to encourage safe driving? Traditional driver education classes tend to do exactly that, with gruesome videos and photos of fatalities and smashed-up cars.