For decades, medical science has viewed dementia as a slow-burning disease driven by genetics and lifestyle. However, a recent, compelling study published in PLOS Medicine suggests that more sudden events occurring externally may shape the timeline of cognitive decline. In particular, severe cystitis (bladder infection) and even cases of tooth decay have been identified as accelerants that can trigger a dementia diagnosis after a few years.

Looking at it through the lens of biology, time, and social care, we can begin to understand why a visit to the dentist or a quick recovery from a urinary tract infection (UTI) may be more important for brain health than we imagine.