New Danish research suggests that initiating statin therapy soon after a type 2 diabetes diagnosis may lower the long-term risk of developing dementia, highlighting potential benefits of early cholesterol management beyond cardiovascular health.
People newly diagnosed with type 2 diabetes may be told to watch their blood sugar, weight and blood pressure. New research suggests cholesterol control could matter for another reason too: people who began statins soon after their diabetes diagnosis were less likely to be diagnosed with dementia in later years, according to a Danish study presented at ESC Congress 2026 and published in The Lancet Regional Health – Europe.
The study, led by researchers at Copenhagen University Hospital, used Denmark’s national health registers to follow 132,585 adults diagnosed with type 2 diabetes between 2006 and 2019. None had taken statins before their diabetes diagnosis. The researchers then tracked them through 2021 and compared those who started statins within a year, those who waited one to five years and those who did not begin treatment within the first five years.
Over a median follow-up of 7.1 years, 2.7 per cent of the group developed dementia. The clearest association was seen in people who started statins within a year of being diagnosed with diabetes: their relative risk of dementia over 10 years was 15 per cent lower than that of people who did not start statins. Starting treatment between one and five years after diagnosis was linked to a 10 per cent lower relative risk.
The pattern was seen in both women and men, suggesting the association was not limited to one sex. Researchers said one possible explanation is that earlier LDL cholesterol lowering may reduce blood vessel damage over time, including damage to the circulation that supports the brain. But they also cautioned that the findings cannot prove cause and effect, because people who start statins quickly may differ in other ways, including access to care, treatment adherence and general health behaviour.
The results fit a wider shift in dementia research, which increasingly looks beyond the brain to the rest of the body. Heart and brain health are closely linked, and conditions such as diabetes, high blood pressure and abnormal cholesterol often travel together. The practical message for now is unchanged: statins remain well established for cardiovascular protection, and the study suggests that starting them sooner after a type 2 diabetes diagnosis may also be worth further investigation as a possible way to protect long-term cognitive health.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
