New Research Reveals How Women Can Reduce Dementia Risk at Any Age

New research suggests that lifestyle choices can significantly lower dementia risk for women at any age. Meanwhile, a major review has clarified the long-debated link between menopause hormone therapy (MHT) and cognitive decline. The findings challenge earlier warnings and provide updated guidance for postmenopausal women. A recent meta-analysis found no evidence that MHT raises or lowers dementia risk. This contradicts earlier concerns, such as the 2002 Women’s Health Initiative (WHI) study, which warned that MHT’s risks outweighed its benefits. A subgroup of WHI, called WHIMS, even reported a higher dementia risk among women using the therapy.

In November last year, the FDA removed black box warnings from MHT products after reviewing newer data. The latest research now indicates a 'window of opportunity' for women under 60 or within a decade of their last period to start MHT safely. Beyond medical treatments, lifestyle factors also play a key role in dementia prevention. Staying physically active, eating well, avoiding smoking, and managing blood pressure and cholesterol all help reduce risk. Social engagement and good sleep habits further support brain health. Experts believe many dementia cases could be prevented through these changes. Currently, the World Health Organization offers no specific advice on MHT and dementia risk. The new findings may prompt updates to global health recommendations.

The review provides reassurance that MHT does not increase dementia risk when used appropriately. Combined with lifestyle adjustments, women now have clearer options for protecting cognitive health. Further updates from health authorities could follow as the evidence evolves.