https://www.smithsonianmag.com/rss/tag/doctors/RSS feed for DoctorsenWed, 30 Sep 2026 12:00:00 +0000https://www.smithsonianmag.com/science-nature/is-more-protein-always-better-despite-the-craze-around-the-nutrient-research-backed-evidence-about-its-benefits-is-complicated-180989584/It can be difficult to see through the array of flashy, protein-packed products and determine whether you need more of it—and which foods to consume to get it. We asked health experts about the benefits and drawbacks of chasing proteinWed, 30 Sep 2026 12:00:00 +0000https://www.smithsonianmag.com/science-nature/is-more-protein-always-better-despite-the-craze-around-the-nutrient-research-backed-evidence-about-its-benefits-is-complicated-180989584/https://www.smithsonianmag.com/smart-news/mri-scans-might-reveal-signs-of-alzheimers-disease-seven-years-before-a-telltale-marker-appears-in-the-brain-180989570/Not all researchers are convinced that the brain changes detected via MRI are robust enough to become a diagnostic tool. But the findings could help researchers better understand the mechanisms that drive the neurodegenerative diseaseTue, 29 Sep 2026 20:33:37 +0000https://www.smithsonianmag.com/smart-news/mri-scans-might-reveal-signs-of-alzheimers-disease-seven-years-before-a-telltale-marker-appears-in-the-brain-180989570/https://www.smithsonianmag.com/science-nature/peptides-are-all-the-rage-promising-miracle-cures-and-makeovers-delivered-by-injection-how-did-we-get-here-180989454/Experts say the peptide craze is part of a broader phenomenon, as patients look beyond the regulated health system to address problems that doctors have struggled to treatWed, 09 Sep 2026 18:28:15 +0000https://www.smithsonianmag.com/science-nature/peptides-are-all-the-rage-promising-miracle-cures-and-makeovers-delivered-by-injection-how-did-we-get-here-180989454/