Forgetting where you put your keys is frustrating. But for people with multiple sclerosis, memory loss can be a daily struggle that goes beyond normal aging. A new study suggests that the problem isn't just remembering something new—it's holding onto that memory over time.
Researchers tested 62 people with MS and 65 healthy adults of similar age, education, and background. They used two common memory tests: one for word lists and one for short stories. Everyone was asked to recall the information immediately, after 30 minutes, and again after a full week.
The results were striking. After seven days, people with MS remembered significantly less than the healthy group. On the word test, the MS group recalled about 64% of what they learned, compared to 78% for controls. On the story test, the gap was even wider: 79% versus 95%. Both differences were statistically significant, meaning they're unlikely to be due to chance.
The study also found that worse memory performance was linked to more fatigue, more memory complaints, longer disease duration, older age, and greater disability. A combined score from the two tests was moderately good at identifying people who felt their memory was slipping—with about 73% accuracy.
It's important to note that this is an observational study, so it can't prove that MS causes faster forgetting. The results are based on a conference abstract, so details about limitations are not yet available. Still, the findings suggest that testing memory after a longer delay—like a week—might help catch cognitive problems earlier in MS.