of people carry at least one gene variant that can change how they respond to a common medicine.
McInnes et al., Clin Pharmacol Ther 2021 ↗Health layer built
on your DNA
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It shapes how your body processes nutrients, responds to exercise and recovers.
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about 50%
of the differences in how long people live come down to genes, about double the 20–25% quoted for decades.
From more than a century of twin records.Shenhar et al., Science 2026 ↗
Share of lifespan differences explained by genes
0%Long thought, 20–25%Now, about 50%100%
people inherit enough common variants to triple their risk of heart disease.
Khera et al., Nature Genetics 2018 ↗lower heart disease risk from healthy habits, even in people at high genetic risk.
Khera et al., NEJM 2016 ↗adults make less of the enzyme that digests milk as they grow up. Whether you do comes down largely to one gene.
NIH MedlinePlus Genetics ↗Interactive sample report
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What stands out in your DNA, what it means, and practical next steps to consider.
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Your health is personal. We explain what the evidence suggests and where it’s uncertain.
Research and clinical guidance
PubMed, ClinVar, CPIC and other established sources.
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Our analysis weighs evidence, relevance and potential action.
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Your DNA file never leaves your browser
It’s read on your device. Only anonymous signals, about 0.5% of it, go into your report.
Stays on your deviceLeaves, anonymised
For information and education only. dnalayer does not diagnose, treat or prevent disease.
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FAQ
Before you start
No. dnalayer reads the raw-data file from a test you’ve already taken. If you’ve never tested, any of the supported providers will do.
Raw data from 23andMe, AncestryDNA, MyHeritage and tellmeGen, plus whole-genome and whole-exome VCF files. Coverage differs by provider, and your report tells you which findings your file can support.
A free preview straight after upload. With the full report: findings across thirteen areas of health in plain words, each with its evidence, a personal action plan, and a version of your report written for your AI.
Your variants are matched to published research by fixed rules, so the same file always gives the same findings. AI only explains findings that have already been matched. It never reads your raw file.
Large raw DNA files can be difficult for an AI to interpret reliably. Our deterministic engine matches your variants to curated references and checks coverage before AI helps explain the findings. This reduces reliance on model memory and helps catch omissions and unsupported claims. You can then take your AI-ready report to the AI you use and explore what the findings mean for you.
No. Most findings shift the odds, not the outcome. Lifestyle, environment and chance still matter, which is why every finding says what its evidence can’t tell you.
It never leaves your browser. The file is read on your device, and only anonymous signals, about 0.5% of it, are used to build your report.