One MRI scan can now reveal how quickly you're aging. Faster aging links to poor memory, chronic illness, and earlier death.

Although the procedure is painless, the MRI machine makes a lot of noise, and you must lie very still for the images to be clear. The test takes about 45 minutes to an hour.

A brain abscess is a rare but life-threatening infection. Learn how advances in imaging, surgery, and diagnostics are ...

Some procedures are less invasive still, making no physical contact with brain tissue at all. Transcranial magnetic stimulation (TMS) applies magnetic pulses to the scalp to treat symptoms of ...