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Is ADHD Genetic?
- Heritability
- ~76%
- Inheritance
- multifactorial
- Key genes
- DAT1,DRD4,DRD5,SNAP25
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ADHD has a high heritability of approximately 74–76%. Children of a parent with ADHD have a 50% chance of also having the condition.
How Genetic Is ADHD?
Genetics plays a meaningful role in ADHD, with heritability estimated at around 76%. However, environmental factors — including diet, lifestyle, and exposure — also significantly influence risk.
Key genes associated with ADHD: DAT1,DRD4,DRD5,SNAP25. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: CDC Genomics
Does Family History Matter for ADHD?
Family history does matter. Having close relatives with ADHD can increase your personal risk, though it is not deterministic. Maintaining a healthy lifestyle and regular screening remain important regardless of family background.
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