Levels of iron in the brain could be a warning sign of future Alzheimer’s disease, a new study suggests. High levels of the chemical element have been shown to increase brain toxins and trigger ...

MRI scans are among the latest imaging technologies in contemporary medicine. They're commonly used to identify a variety of conditions, ranging from brain tumors to spinal problems. But are they safe ...

Donald Trump and his doctor said the president underwent a CT scan and that the procedure was mischaracterized as an MRI.

President Trump’s off-the-cuff disclosure that he underwent an MRI scan is raising fresh questions about the secrecy surrounding Trump’s health and the need for presidents to be more transparent.