Older adults with type 2 diabetes live, on average, 2.15 fewer years without disability compared to older adults without diabetes, even when accounting for other health factors like BMI and heart...

We analyzed the available evidence and found that older adults with type 2 diabetes live, on average, 2.15 fewer years without disability compared to those without diabetes, even after accounting for other health factors like body weight and heart disease [1]. This means that, on average, diabetes is linked to a shorter period of life spent free from limitations like difficulty walking, bathing, or managing daily tasks. The evidence we’ve reviewed so far includes 59 studies or assertions that support this finding, with none that contradict it. These results suggest that type 2 diabetes may play a role in how long older adults can live independently, without needing help for basic activities. The numbers account for other common health issues, which helps us see that diabetes itself appears to add extra burden beyond what other conditions might explain. We don’t know exactly why this happens, but it may be related to how high blood sugar affects nerves, blood vessels, and muscle function over time. What we’ve found so far doesn’t prove diabetes causes disability, but it does show a consistent pattern across many older adult populations. For someone managing or at risk for type 2 diabetes, this suggests that keeping blood sugar under control might help preserve independence longer — not just by avoiding complications, but by helping maintain the ability to move, care for oneself, and stay active as you age.