Full-Body MRI Scans Like Prenuvo Have Become a Status Symbol. Do They Work?

For $2,499, Prenuvo will try to predict your future. The company offers a roughly hourlong session of magnetic resonance imaging, or M.R.I., that scans your entire body, searching for early signs of cancer, aneurysms, liver diseases and even multiple sclerosis.In recent months, images of celebrities and influencers posing in branded scrubs in front of a…