Full-body MRIs are all the rage. Celebrities and influencers tout the benefits of such scans that could find asymptomatic aneurysms and cancers lurking in your body. Sometimes, they're life-saving.

An advantage of whole-body MRIs over CTs is that they use magnets and radio waves, which eliminate the type of radiation linked to cancer. But that doesn’t mean they’re risk-free or the right choice ...

For an insubstantial fee, many private clinics in the UK offer full-body MRI scans to detect disease and abnormalities at the earliest stage. Kim Kardashian and Kate Hudson are fans. (Other celebrity ...