HRT and Dementia Risk: New Research Finds No Meaningful Link
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There is “no evidence” that hormone therapy (HT), also known as hormone replacement therapy (HRT), increases or decreases the risk of dementia in women, according to a recent study. The findings reinforce current clinical guidance and suggest that HT does not considerably impact cognitive decline.
Study Details & Findings
A study conducted by University College London, with support from the University of Exeter, investigated the relationship between hormone therapy and the risk of mild cognitive impairment (MCI). The research, published in December 2023 and part of a larger review commissioned by the World Health Organisation, analyzed data to determine if HRT had any notable effect on cognitive function.
The study found “no significant association” between HRT and the development of MCI, a condition characterized by problems with memory or thinking that can sometimes progress to dementia. Details of the study can be found on the University of Exeter news page here.
Understanding mild cognitive Impairment (MCI) and Dementia
It’s vital to understand the difference between MCI and dementia.
* Mild Cognitive Impairment (MCI): MCI causes noticeable cognitive changes, such as memory loss or difficulty with language, that are greater than expected for a person’s age. However, individuals with MCI can still function independently in daily life. More information about MCI can be found on the Alzheimer’s Society website: https://www.alzheimers.org.uk/about-dementia/types-dementia/mild-cognitive-impairment-mci.
* Dementia: Dementia is a general term for a decline in mental ability severe enough to interfere with daily life. It is caused by damage to brain cells and can affect memory, thinking, behavior, and the ability to perform everyday tasks.
While MCI can sometimes be a precursor to dementia, it does not always develop into the condition.
Implications and Future Research
Experts emphasize that while this study provides valuable insight, further research is still needed. The current findings “reinforce current clinical guidance,” suggesting that decisions regarding HRT should be made on a case-by-case basis, considering individual health needs and risks, rather than concerns about dementia risk.
The National Institute on Aging provides extensive information on dementia and related research: https://www.nia.nih.gov/. Ongoing studies will continue to explore the complex relationship between hormonal changes, cognitive health, and the potential benefits and risks of hormone therapy.
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