Doctor Proposes '10-Year Rule' to Distinguish Menopause Brain Fog from Dementia

For women experiencing midlife memory lapses, such as difficulty recalling words or losing their train of thought, a UCLA neurology professor recommends a simple benchmark: comparing their current cognitive function to how they performed 10 years prior. Dr. Rhonda Voskuhl, a professor of neurology at UCLA and co-founder of Cleopatra RX, suggests this approach can help differentiate between menopausal brain fog, often linked to estrogen shifts, and early signs of dementia or Alzheimer's disease.

"The first question is, are you worse than you were 10 years ago?" Voskuhl stated, referencing the Voskuhl Brain Fog Menopause Assessment used at UCLA's Comprehensive Menopausal Program. This self-evaluation aims to help women recall their mental state a decade earlier, considering factors like word recall, multitasking ability, and processing speed. Such a comparison can provide both patients and physicians with a baseline for tracking cognitive changes over time, particularly those potentially related to menopause.

Standard neurological tests may not always detect subtle shifts in everyday cognitive function, a phenomenon known as subjective cognitive decline. The Centers for Disease Control and Prevention reports that approximately one in nine adults experience subjective cognitive decline, yet less than half discuss these concerns with a healthcare professional.

Voskuhl likened the difficulty in detecting subtle cognitive changes to a high-performing athlete. Even if standard tests show strength, the athlete knows if their performance has diminished compared to their past capabilities. Similarly, women may recognize changes in their cognitive abilities that don't register on conventional tests.

Menopausal brain fog is often characterized by temporary, inconsistent lapses, such as misplacing items or experiencing slower processing. These symptoms can fluctuate and may be exacerbated by stress or poor sleep. In contrast, early dementia typically involves persistent, progressive memory loss that interferes with essential daily activities like managing finances or navigating familiar routes.

Experts advise a thorough medical evaluation for cognitive concerns, which may include brain MRIs or vascular screenings to rule out underlying conditions such as blood vessel disease or thyroid imbalances. If women feel their concerns are being dismissed by their doctor, Voskuhl advises finding a new physician who will listen.