16/01/2026
ADHD is often viewed purely as a behavioural or neurotransmitter issue. But for many people, part of the story is written into their DNA.
Recent research highlighted in our latest Life X DNA® blog explores the HTR2A gene, which codes for the 5-HT2A serotonin receptor. This receptor plays a vital role in attention, focus, sleep quality, mood, and emotional regulation.
Certain genetic variants within HTR2A have been associated with a higher likelihood of ADHD in both children and adults. These variants may influence how effectively serotonin signals in the brain.
This shifts the conversation in an important way.
ADHD is not just a label. It is a pathway challenge.
Why this matters
When specific genetic variants are identified, such as HTR2A rs7984966 or rs7322347, support becomes more personalised and meaningful. Instead of broad advice, genetics can help explain:
• Why attention and focus may be difficult
• Which biological pathways are involved
• How lifestyle and nutritional strategies may better support brain function
From genetics to action
At Life X DNA®, we translate genetic insights into practical, evidence informed strategies. This includes guidance around movement, lifestyle habits, and carefully selected supplements that may help support serotonin signalling based on an individual’s unique genetics.
This is where advanced genetic analysis makes a real difference:
• Clear SNP level insights
• Personalised, evidence ranked lifestyle and supplement suggestions
• Easy to understand reports that empower clients to take action
Imagine the difference
Instead of hearing “ADHD is complex,” you hear:
“Your genetics suggest reduced serotonin signalling through this receptor. Here is how we can support it.”
That level of clarity builds confidence, improves engagement, and helps people feel genuinely understood.