Real positives aren't much better! A friend of mine worked with an MRI researcher and therefore had an opportunity to undergo a number of elective MRIs for free

Real positives aren't much better! A friend of mine worked with an MRI researcher and therefore had an opportunity to undergo a number of elective MRIs for free. They consistently turned up minor issues (labral tears, bone spurs, etc.), even in body parts that he assumed were perfectly healthy. Bodies are complicated, and we can compensate a surprising amount before things become an problematic. Learning about all of these isn't always helpful, and can actually cause harm (e.g. stress) once made aware.