Ever wonder why a tiny request, an email, or even traffic can make you explode? It’s not weakness. It’s wiring.

Maria knows this all too well. She’s 40, a project manager juggling endless meetings and deadlines. On a normal day, she can handle the pressure. But when her boss added one more task—“Can you finalize the budget tonight?”—her composure cracked. Her voice rose, her chest tightened, and the anger surged. Later, she asked herself: Why did something so ordinary feel unbearable?

In Impulse and Fire: Reset and Regulate Anger and ADHD, we write that it’s not about having a bad temper. It’s about how stress changes your brain chemistry

 

Stress Isn’t Just Stress

When stress hits, your body releases cortisol. A little cortisol sharpens focus. Too much floods the system, interfering with dopamine and norepinephrine—chemicals that control attention and mood.

For people with ADHD, where these chemicals are already unstable (Volkow et al., 2009), the impact is magnified. That’s why Maria’s boss’s request felt like an attack, not an email.

The Brain on Stress

  • Stress weakens the prefrontal cortex (the rational brake system) and strengthens the amygdala (the emotional alarm) (Arnsten, 2009).
  • Chronic stress makes people more irritable and prone to anger (McEwen, 2017).
  • ADHD brains, with altered reward pathways, are even more sensitive to frustration and slower to recover (Shaw et al., 2014).

This is why a small inconvenience can suddenly feel catastrophic.

Why Stress Feels Like Gasoline

In Impulse and Fire, we describe it like this: stress is not the spark—it’s the gasoline

Triggers don’t create the explosion alone; they ignite the fuel already waiting in your system.

Maria didn’t “overreact.” Her brain chemistry made the moment bigger than it was.

What You Can Do

You can’t erase stress, but you can retrain how your brain responds.

Stop letting stress run the show. Get our new book Impulse and Fire today, and start the Anger Management Program now to turn stress into focus instead of fury.

References

  • Richard, Y. (2025). Impulse and Fire: Reset and Regulate Anger and ADHD. Epic Journeys Publishing
  • Arnsten, A. F. T. (2009). Stress signalling pathways that impair prefrontal cortex structure and function. Nature Reviews Neuroscience, 10(6), 410–422.
  • McEwen, B. S. (2017). Neurobiological and systemic effects of chronic stress. Trends in Neurosciences, 40(9), 667–680.
  • Shaw, P., et al. (2014). The neurodevelopmental trajectory of ADHD. Biological Psychiatry, 76(8), 597–603.
  • Volkow, N. D., et al. (2009). Motivation deficit in ADHD is associated with dysfunction of the dopamine reward pathway. Molecular Psychiatry, 14(1), 54–63.