Evidence report library
Browse health and science claims by evidence strength.
Search deHype reports by topic, grade, study type and clinical relevance. Each card gives the practical verdict first, then links to the full source-chain review.
Explore by topic
Top public report topics, ranked by current archive coverage.
Cancer
A guide to interpreting news and research about cancer, with evidence checks on headlines,…
7 reports
Dementia
Evidence checks about dementia headlines, Alzheimer’s claims, supplements, biomarkers, and…
7 reports
Diet and nutrition
Diet and nutrition headlines often exaggerate the strength of evidence, particularly when …
2 reports
Heart health
Evidence checks about cardiovascular headlines, cholesterol, blood pressure, stroke, stati…
1 report
Longevity
Explore evidence and critical reviews relating to ageing, biological age markers, and anti…
1 report
Mental health
Evidence checks about depression, anxiety, stress, psychedelics, apps, lifestyle intervent…
1 report
Latest evidence reports
Concise archive cards help readers decide whether to open the full source-chain report.
Evidence check: Dementia: Joint pain supplement may speed progression
The evidence for glucosamine accelerating dementia is preliminary, indirect, and partly observational; findings require replication and do not justify clinical changes at this stage.
Early-stage only Observational human evidence Not clinically actionable
Evidence check: COVID Shots Tied to Lower Risks of Heart Attack, Cardiac Death
The article accurately represents promising observational evidence for cardiovascular benefits of COVID vaccination in older adults, though causal inference is limited and effects are small outside high-risk groups.
Observational benefit Randomised human evidence Potentially actionable with caution
Evidence check: Cancer jab can eradicate entire tumours in patients, trial shows
The claims are based on a single phase trial presented at a conference, with only partial data for a select group; definitive benefit, safety, and general applicability are not yet established.
Early-stage only Limited human evidence
Evidence check: Can fasting fight gum disease? Scientists find surprising link
This article reports encourageing pilot trial findings linking fasting-style diets to reduced gum inflammation markers, but evidence is limited to a small sample and surrogate endpoints, not direct clinical benefit.
Early-stage only Limited human evidence Not clinically actionable
Evidence check: New ovarian cancer drug gives women more time and better quality of life - BBC News
Claims are based on trial summary data, patient/clinician testimony, and regulatory approval, but without peer-reviewed publication link or full sharing of side-effect profile, so should be viewed as promising but pending further independent verification.
Preliminary clinical benefit Randomised human evidence Potentially actionable with caution
Evidence check: Your nose could detect Alzheimer’s years before symptoms begin
The research offers scientific insight into early immune changes and olfactory loss in Alzheimer’s, but the article’s diagnostic and therapeutic framing exceeds the current clinical evidence.
Over-framed Limited human evidence Clinically actionable
Evidence check: A personalized vaccine for melanoma cut the risk of cancer returning after five years
While initial trial results for the melanoma vaccine are promising, claims outpace the available peer-reviewed evidence and longer-term follow-up.
Early-stage only Limited human evidence Not clinically actionable
Evidence check: Blood and spinal fluid proteins reveal distinct fingerprints of four brain diseases
This is a robust molecular profiling study in humans, but proposed diagnostic and therapeutic applications are not yet validated, making clinical conclusions premature.
Early-stage only Limited human evidence Hypothesis-generating only
Evidence check: Cycling Linked to Lower Risk of Dementia, Study of Half a Million Finds
The study shows an association between cycling and lower dementia risk, but is observational and does not establish that cycling prevents dementia; results could be affected by confounding factors.
Early-stage only Observational human evidence
Evidence check: Early-Onset Colorectal Cancer Risk Factors Identified
These conference-presented studies provide plausible but non-causal evidence from observational human data linking several risk factors—including obesity, family history, metabolic/hematologic markers, and oral antibiotic exposure—to early-onset colorectal cancer or adenomas; however, the findings are not sufficient to change clinical guidance without peer-reviewed publication and further validation.
Preliminary & Observational
Evidence check: Why some brain cells are particularly vulnerable to multiple sclerosis
The Science News article closely reflects the findings of recent peer-reviewed research linking DNA repair deficits in CUX2 neurons to progression of MS, but the evidence is primarily from mouse models and comparative human tissue studies, not clinical trials or interventions. The clinical actionability for patients or providers is currently nil, while the potential for future targeting remains hypothetical.
Early-stage only Limited human evidence