Younger-Onset Type 2 Diabetes Linked to Higher Dementia Risk

A study conducted by researchers at NYU Rory Meyers College of Nursing and published in _PLOS ONE_ has found that individuals diagnosed with type 2 diabetes at younger ages are at a higher risk of developing dementia. This risk is markedly amplified in adults with obesity. **Type 2 diabetes**, traditionally associated with older adults, is now increasingly affecting younger populations, with one in five people worldwide under 40 being diagnosed. This study leveraged data from the Health and Retirement Study, involving 1,213 U.S. adults over 50, without dementia at the study’s outset, and tracked them over 14 years. The findings show that those diagnosed before age 50 are 1.9 times more likely to develop dementia than those diagnosed at 70 or older, with a graded risk increase of 1.9% for every year younger at diagnosis. The study suggests that vascular complications and poor blood sugar control associated with early diabetes may contribute to cognitive decline. Obesity was also found to significantly heighten dementia risks in younger diabetes patients. Researchers suggest that interventions targeting obesity could play a crucial role in dementia prevention among young adults with diabetes. The study was supported by the National Institute of Aging and the National Institute on Minority Health and Health Disparities.