"A 2026 Finnish study published in JAMA Internal Medicine that used magnetic resonance imaging (MRI) scans to look at patients’ shoulders found that 99% of Finnish adults over 40 have at least one rotator cuff abnormality."
https://brainlenses.substack.com/p/abnormality
Incidental Rotator Cuff Abnormalities on Magnetic Resonance Imaging https://jamanetwork.com/journals/jamainternalmedicine/fullar...