I keep seeing people promoting elective full-body MRI scans on social media, and have been thinking of getting one for some peace of mind. I am average risk and have no symptoms. Is it a good idea?I’ll be honest. I’ve been tempted by whole-body MRIs, too. As an oncology fellow, I’m constantly reminded of rising cancer rates, particularly in people under 50, like me. And on social media, it seems like one influencer or celebrity after another is signing up for a scan that promises to look for conditions ranging from heart disease to osteoarthritis to cancer. A TikTok video about a trip to the MRI scanner has begun to seem as routine as makeup tutorials and Target hauls.