New Health Research: Lifestyle Changes Outperform Metformin for Prediabetes, and More
New findings are adding momentum to two important health conversations: how to prevent type 2 diabetes after a prediabetes diagnosis, and what estrogen-based menopausal hormone therapy may: or may not: mean for Alzheimer’s risk.
The long-running Diabetes Prevention Program found that an intensive lifestyle program: focused on losing about 7% of body weight, eating fewer calories and fat, and completing 150 minutes of weekly activity: reduced diabetes risk by 58% over roughly three years. Metformin lowered risk by 31%.
Longer follow-up suggests lifestyle changes can also reduce the broader burden of chronic illness. In a 21-year analysis reported by the National Institutes of Health, 82% of lifestyle-program participants developed at least two chronic conditions, compared with 85% in the metformin group and 87% receiving placebo. The researchers found a statistically significant lower risk of multimorbidity for lifestyle intervention, but not for metformin. Neither approach clearly reduced deaths or major cardiovascular events in that analysis.
A separate Stanford Medicine study found that estrogen-only therapy was associated with fewer Alzheimer’s-related brain changes and lower odds of dementia. However, the study was observational and cannot prove cause and effect. It did not establish the same result for estrogen-plus-progestin therapy.
The Alzheimer’s Society says the overall evidence remains mixed. Hormone therapy is not recommended solely to prevent dementia, and timing, formulation, age, and personal health history matter.
For neighbors, the practical takeaway is steady rather than dramatic: ask your clinician about your blood-sugar numbers, build movement into your week, and choose sustainable meals. Do not start, stop, or change metformin or hormone therapy without medical guidance. What healthy habit has made the biggest difference in your household? Share the conversation with your neighborhood.
