Over the past few weeks we've been talking about a medical movement which encourages doctors and patients to avoid tests and treatments which might be unnecessary and costly, or possibly even harmful, but this new line of thinking requires big behavioral changes. 

And Southern California Public Radio's Rebecca Plevin has been exploring this shift. To read more about what Rebecca's discovered, visit her blog post.

Correction: In the audio version of this segment Rebecca mentions that an MRI test can expose a patient to radiation. While MRI’s use radio waves, they don’t use the potentially harmful ionizing radiation that you get in an x-ray. KPCC regrets the error.