11/21/2025
Addiction risk begins far earlier than most people think — often before age 12.
And the latest neuroscience is showing us why.
New research on kids ages 9–11 found that even before any substance use, their brains already display patterns linked to future addiction risk — especially when there’s a family history of substance use disorder.
But what’s most striking is how boys and girls differ:
- Girls
Show higher “transition energy” in brain networks tied to self-reflection and rumination.
They can get emotionally “stuck,” looping through intense thoughts — the same neural circuits associated with anxiety and depression, both of which correlate with addiction risk.
- Boys
Show reduced energy in networks linked to control and focus.
Their brains react more intensely to rewards and disruptions, making them more prone to impulsive or sensation-seeking behavior.
These differences appear before any drug or alcohol use.
That means addiction vulnerability is not just behavioral — it’s biological, inherited, and shaped early.
But here’s the most important takeaway:
👉 For both boys and girls, the strongest protective factor is having a sober parent.
Substance use in adults doesn’t just impact the home — it reshapes a child’s brain.
When a parent chooses sobriety, it can interrupt a generational pattern long before it emerges.
Breaking the cycle doesn’t start in crisis.
It starts with parents choosing a healthier path — for themselves, and for the future their kids will grow into.
If you need support, we’re here. Explore our IOP and private recovery programs at arsnh.com.