A new review suggests that metabolic conditions associated with PMOS, rather than the syndrome itself, may be linked to an increased risk of Alzheimer’s disease and dementia.
Key facts
- •A review published in the Journal of the Endocrine Society on October 13 investigated the link between PMOS and Alzheimer’s disease.
- •Researchers suggest that metabolic conditions like insulin resistance and obesity may be the actual drivers of increased dementia risk.
- •Brain imaging studies identified structural and functional differences in the brains of people with PMOS.
- •Experts emphasize that an association between PMOS and dementia does not prove that the syndrome causes Alzheimer’s disease.
- •Modifiable lifestyle factors, including diet, exercise, and blood sugar management, are recommended to support long-term brain health.
A review published October 13 in the Journal of the Endocrine Society explores the connection between polyendocrine metabolic ovarian syndrome (PMOS)—formerly known as PCOS—and Alzheimer’s disease. Researchers suggest that underlying metabolic issues, such as insulin resistance and obesity, may contribute to cognitive changes rather than the syndrome itself. Experts emphasize that the findings do not prove causation and that more research is required to understand the relationship.
Metabolic Factors and Brain Health
The review analyzed studies published through 2025 that examined brain structure, cognitive performance, and biomarkers in individuals with PMOS. Researchers observed that neurological differences were less pronounced when comparing PMOS patients to metabolically healthy control groups. This suggests that conditions like type 2 diabetes, insulin resistance, and elevated cholesterol—which are common in those with PMOS—may be the primary drivers of the observed brain health changes. Experts noted that insulin resistance, in particular, may interfere with how brain cells utilize energy, potentially impacting memory and thinking. Additionally, chronic inflammation and elevated androgen levels, both associated with PMOS, are being investigated for their potential roles in dementia risk.
Managing Long-Term Risks
Medical professionals stress that having PMOS does not guarantee cognitive decline, as many associated risk factors are modifiable. Recommended strategies for supporting brain health include regular cardiovascular and strength training, a Mediterranean-style diet, and the management of blood sugar, cholesterol, and blood pressure. Some experts also noted that medications like metformin may help improve insulin resistance. Healthcare providers encourage individuals with PMOS to maintain regular check-ups to monitor their metabolic health and address potential issues early.
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This article was independently rewritten by ManyPress editorial AI from reporting originally published by Healthline.
