The New England Journal of Medicine published an article yesterday regarding the increase in the average American's lifetime dose of radiation. The issue is CTs, which have a become routine part of medicine. 10% of Americans are getting CTs every year. While CT scans assist physicians in making diagnoses, the radiation exposure is many times that of plain x-rays. Additonally, doses delivered by different CT scanners are not consistent. Radiation exposure has been linked to many types of cancer. Experts are recommending consistent dosing of scanners and physicians being more selective about requesting the scans.