Continuously updated · last reviewed Sep 5, 2026
Each page covers one condition properly: what it actually is and what it feels like, what causes it, how common it really is and in whom, and how it's diagnosed — followed by the specific variants with a replicated link to it, and, where the research supports it, how genetics can change the way a medicine behaves.
Written in two registers so one page serves both readers: plain language first, then a clinical detail section with the precise terminology, effect sizes and diagnostic thresholds. Every claim is sourced from freely-available published research and cited on the page, so you can check us — or hand the page to your doctor. 27 conditions so far, growing continuously, and free to reuse with attribution (CC BY 4.0).
2 results in Dermatologic
Male pattern baldness is strongly heritable and linked to a variant in the androgen receptor gene on the X chromosome. That partly explains the 'blame your mother's father' folklore, but dozens of other genes also matter.
Read more → DermatologicHow two pigmentation variants (IRF4 rs12203592 and SLC45A2 rs16891982) relate to freckling and sun sensitivity, what they do and do not say about melanoma and skin cancer risk, and why early detection matters most.
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