09/07/2026
Here's a weird Monday fact for you: People with Parkinson's disease frequently have so much iron in their brains that it shows up on MRIs -- and it's not clear if it's a cause or symptom. 😬
Today we take a look at the conflicting views and how in 2026 we still don't have a definitive answer!
For decades, MRIs showed iron buildup in the brains of people with Parkinson's. The prevailing idea was simple: because excess iron can caus