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Review finds no evidence that testosterone improves brain fog during menopause (opens in a new tab)

medicalxpress.com · 2026-10-30

Short answerEvidenceSource

Short answer

Mixed

Mixed.

The claims we could check match the study, but some claims were not covered by the evidence reviewed.

  • 2 supported
  • 3 not covered

Checked against the study summary. The full text wasn't available, so some details couldn't be settled either way.

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Follow the evidence trail
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2

NewsLink checks it

Mixed

Every claim we could check holds up. Two of five claims match the study. This overall rating is based only on the claims we could check. Three claims the study doesn't address.

  • 2 supported
  • 3 not covered
Open claim evidence
3
Source paper

Source layer

The 2 papers the story cites

Source study separated from background citations.

The research anchor for the report.

Then inspect each claim

Evidence layer

Claim by claim

Each claim gets a verdict. Expand it to see the evidence directly below.

5 claims in this story

Showing all 5 claimsChoose a verdict to focus the list.

Claim 1 of 5Not coveredThe review examined five existing studies of women aged 41 to 65 to assess whether testosterone treatment improves thinking and memory during and after menopause.View evidenceHide evidence

As statedfive studies; women aged 41 to 65

Why this verdict

The profile supports that the review examined five existing studies assessing testosterone therapy and cognitive outcomes in menopausal/peri-/postmenopausal women. However, the specific participant age range of 41 to 65 is not available in the abstract-level evidence, so that quantitative detail cannot be verified at this depth.

1

Study evidence

No clear evidence that testosterone therapy affects thinking and memory in menopausal women.

“Testosterone Therapy for Cognition in Menopause: Systematic review and meta-analysis.”
2

Study evidence

Across five small included studies, there was no clear evidence that testosterone therapy affects cognition (thinking and memory) in menopausal women.

“However, there were only a few small studies, so the results need to be interpreted carefully.”
Claim 2 of 5Not coveredThe authors conducted a meta-analysis of three studies involving 244 women in randomized controlled trials and found no statistically significant improvements in cognitive function among participants taking testosterone.View evidenceHide evidence

As statedthree studies; 244 women

Why this verdict

The profile supports that the work is titled as a systematic review and meta-analysis and found no clear evidence that testosterone affects thinking and memory. But the abstract-level profile does not report that exactly three randomized controlled trials were meta-analyzed, that they included 244 women, or that the result was specifically expressed as no statistically significant improvement. Those study-design, sample-size, and statistical-significance details are not verifiable from the supplied abstract-depth profile.

1

Study evidence

No clear evidence that testosterone therapy affects thinking and memory in menopausal women.

“Testosterone Therapy for Cognition in Menopause: Systematic review and meta-analysis.”
Claim 3 of 5Not coveredCurrent guidance from the British Menopause Society and the International Menopause Society only supports testosterone therapy for low libido, not for cognition or brain fog.View evidenceHide evidence

Why this verdict

The profile notes that testosterone is sometimes prescribed in menopause, for example for low sexual desire, and that effects on cognition are unclear. However, it does not provide the cited British Menopause Society or International Menopause Society guidance, nor does it verify that those bodies only support testosterone therapy for low libido and not cognition or brain fog. This claim is therefore not verifiable from the supplied abstract-level paper profile.

1

Study evidence

No clear evidence that testosterone therapy affects thinking and memory in menopausal women.

“Testosterone Therapy for Cognition in Menopause: Systematic review and meta-analysis.”
2

Study evidence

Across five small included studies, there was no clear evidence that testosterone therapy affects cognition (thinking and memory) in menopausal women.

“However, there were only a few small studies, so the results need to be interpreted carefully.”
Claim 4 of 5SupportedA UCL study published in Reproduction and Fertility found there is not enough evidence to determine whether testosterone helps with thinking and memory in midlife women.View evidenceHide evidence

Why this verdict

The abstract-level profile supports the core claim: the paper is a systematic review/meta-analysis on testosterone therapy and cognition in menopause, identified few small studies, and concluded there was no clear evidence that testosterone impacts thinking and memory, requiring cautious interpretation. The supplied profile does not independently substantiate the UCL affiliation or journal title, but the scientific finding as framed is supported.

1

Study evidence

No clear evidence that testosterone therapy affects thinking and memory in menopausal women.

“Testosterone Therapy for Cognition in Menopause: Systematic review and meta-analysis.”
2

Study evidence

Across five small included studies, there was no clear evidence that testosterone therapy affects cognition (thinking and memory) in menopausal women.

“However, there were only a few small studies, so the results need to be interpreted carefully.”
Claim 5 of 5SupportedThe researchers say the available evidence is limited and insufficient to determine the effect of testosterone therapy on cognition in women during the menopause transition and postmenopause, and that this reflects a lack of evidence rather than evidence of no effect.View evidenceHide evidence

Why this verdict

This accurately reflects the paper profile. The abstract-level evidence says only a few small studies were available, results should be interpreted carefully, no clear evidence was found that testosterone impacts thinking and memory, and the review highlights a knowledge gap requiring more studies. The story’s caveat that this is lack of sufficient evidence rather than proof of no effect is consistent with the profile’s cautionary framing.

1

Study evidence

No clear evidence that testosterone therapy affects thinking and memory in menopausal women.

“Testosterone Therapy for Cognition in Menopause: Systematic review and meta-analysis.”
2

Study evidence

Across five small included studies, there was no clear evidence that testosterone therapy affects cognition (thinking and memory) in menopausal women.

“However, there were only a few small studies, so the results need to be interpreted carefully.”
Then look for missing context

Context layer

What the story left out

Important study details the story did not include.

  • Included studies assessed heterogeneous cognitive domains, including attention, planning/decision-making, learning, and memory, which may limit comparability and synthesis.

    The story broadly refers to thinking, memory, cognition, and brain fog, but it does not explain that the included studies assessed different cognitive domains or that this heterogeneity limits synthesis and interpretation.

    From Systematic review and meta-analysis; Systematic review and meta-analysis

  • At abstract depth, the profile lacks detailed methods, risk-of-bias assessment, study characteristics, and effect estimates, limiting full appraisal.

    The story does not mention that the abstract-level evidence lacks details needed to appraise search methods, inclusion criteria, risk of bias, or quantitative effect estimates. This is a limitation of what can be verified from the supplied paper profile rather than necessarily a flaw in the story.

    From Systematic review and meta-analysis; Systematic review and meta-analysis

5 things the story did carry across
  • The paper is a systematic review and meta-analysis of testosterone therapy effects on cognition in menopause.
  • Five studies were identified and synthesized.
  • The review found no clear evidence that testosterone therapy affects or improves thinking and memory/cognition in menopausal women.
  • The evidence base was limited because there were only a few small studies, so results should be interpreted cautiously.
  • The review highlights a knowledge gap and calls for more studies to guide treatment decisions.
Then read the study layer

Study layer

Study at a glance

Scan the study first. Expand only the parts you want to inspect.

Pieces of work

2

Evidence read

study summary

Lead result

secondary data

1Lead resultsecondary dataSynthesize existing clinical evidence on whether testosterone therapy affects cognition (“brain fog” domains such as attention, executive function, learning/memory) in menopausal/peri-/postmenopausal women.Systematic review and meta-analysisExpand

In plain English

Systematic review and meta-analysis evaluating whether testosterone therapy affects cognition in menopausal women. The authors identified five studies that assessed multiple cognitive domains (attention, planning/decision-making, learning/memory) and report no clear evidence that testosterone improves or impairs thinking and memory; the evidence base was small and results should be interpreted cautiously.

Key findings

  • No clear evidence that testosterone therapy affects thinking and memory in menopausal women.
“Testosterone Therapy for Cognition in Menopause: Systematic review and meta-analysis.”
What this piece can’t prove
  • Only a few (five) studies available, described as small, which limits confidence in conclusions.
  • Heterogeneity in cognitive domains assessed across studies may limit comparability and synthesis.

1 further detail could not be confirmed from the summary.

2secondary dataCharacterize the strength/limitations of the evidence base (number of studies, sample sizes/heterogeneity) and identify research gaps to guide future studies.Systematic review and meta-analysisExpand

In plain English

The systematic review identified five small studies evaluating testosterone therapy and multiple cognitive domains in menopause and found no clear evidence of benefit; the authors emphasize the sparse, heterogeneous evidence base and call for more, larger studies to address this gap.

Key findings

  • Across five small included studies, there was no clear evidence that testosterone therapy affects cognition (thinking and memory) in menopausal women.
  • The review identifies a notable evidence gap and recommends more research on testosterone and cognitive outcomes in menopause to inform treatment decisions.
“However, there were only a few small studies, so the results need to be interpreted carefully.”
What this piece can’t prove
  • Only a few studies (five) were identified in the review.
  • Included studies were small, limiting statistical power.
  • Heterogeneity in cognitive domains and outcome measures across studies limits synthesis and interpretation.

1 further detail could not be confirmed from the summary.

Finally, the search trail

Method layer

NewsLink found the paper. Tessa takes you deeper.

NewsLink checks the story. Tessa is where you inspect the paper, authors, evidence, and research context.

Papers considered

The selected paper, plus nearby candidates.

PubMed, Europe PMC, Crossref · 35 candidate papers

Candidate

Author response for "Individual trajectories of fertility with age highlight the costs of reproduction in a pre-industrial population"

2026 · Crossref

Source (opens in a new tab)

And 29 more candidates considered.