HRT May Reduce Dementia Risk If Timed Right With Menopause

Key Points:

• New research suggests hormone replacement therapy (HRT) started in middle age can protect women's brains and reduce dementia risk, especially when begun between ages 46 and 56, challenging previous concerns about HRT's dangers.
• The key to HRT's benefits lies in the "window of opportunity" early in menopause, as starting treatment too late may offer no cognitive protection or even cause harm due to brain aging and reduced vascular flexibility.
• Estrogen plays a critical role in brain health by regulating memory, mood, and blood flow, and its sharp decline during menopause contributes to symptoms like hot flashes and brain fog, signaling when HRT might be most effective.
• The FDA removed black box warnings on HRT in 2025, reflecting evolving evidence that benefits often outweigh risks for healthy women under 60 or within 10 years of menopause onset, though individual risk factors must be considered.
• Experts emphasize that women experiencing menopause symptoms should discuss HRT with their doctors, as early intervention may not only alleviate symptoms but also protect against dementia and other neurodegenerative diseases.