Evidence-based articles about ADHD, Autism, Dyslexia and neurodevelopmental conditions.
TPH1/TPH2, SLC6A4, HTR1/HTR2 - serotonin gene explainers are everywhere right now. Some of it is textbook-accurate. Some of it is one researcher's theory presented as settled fact. And serotonin isn't even ADHD's primary biology - here's where it actually matters.
A November 2025 genome-wide study found 15 genetic loci shared between ADHD and 5 major cardiovascular diseases. Mendelian randomization shows ADHD genetic risk causally raises heart disease risk - partly through BMI and smoking, which are modifiable.
A landmark UNC study in Cell tested 17,841 genetic variants in living human neural cells and found 683 that shape 8 conditions at once: autism, ADHD, depression, bipolar, schizophrenia, OCD, Tourette, anorexia. The shared ones stay active longest during brain development.
Over 100 genes are linked to autism. A landmark 2026 study found they all disrupt the developing brain in the same way :at the same critical windows. Here is what that means.
A 2026 Science study forced lab-grown human neurons to fire and captured their genetic activity in real time. The finding: genes linked to ADHD, autism and other brain conditions are not always on - they are context-specific.
ADHD emerges from the interaction of three forces: genes, brain biology, and early environment. Understanding all three shifts the conversation from blame to precision.
New research shows that hundreds of genes are linked to autism, but what matters most may not be which gene is involved, it's the shared brain pathway those genes disrupt. Here's what the latest science reveals.
The main genes linked to ADHD, what they do, and the honest truth about whether 23andMe or AncestryDNA can detect them.
Trauma, stress and environment do not change your DNA sequence, but they can change how your genes are switched on or off. Here is what the latest research says about epigenetics, PTSD, depression, schizophrenia and ADHD, and what it does not say.
Childhood trauma leaves molecular marks on your DNA - and on the DNA you may pass to your children. The science is real, but so is the reversibility. Here is what FKBP5, NR3C1 and the work of Yehuda and Mansuy actually show.
Thousands search for the link between MTHFR variants and ADHD every month. Here is the honest, science-backed answer - and what your 23andMe or AncestryDNA data can actually tell you.
New research links 200+ genetic variants to ADHD. What does your DNA say about your attention?
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