Does ADHD explain why small noises completely derail my focus?

Yes, that’s a very common ADHD experience. ADHD isn’t just about attention. It’s also about filtering. Many adults with ADHD have difficulty screening out irrelevant sensory input, especially sound. So instead of background noise fading away, every little sound gets equal priority in your brain. Tiny noises like a keyboard click, someone shifting in their chair, a notification, or a hum that others barely notice can feel intrusive and impossible to ignore. Once your attention is pulled, getting back to the task can take a lot of effort. That derailment is exhausting and frustrating. Clinically, this is related to differences in sensory gating and attentional control. Your brain struggles to decide what to tune out, so it keeps reacting. It’s not a sensitivity you can will away. This often improves with treatment. Medication can help the brain filter noise more effectively. Environmental strategies help too, like noise cancelling headphones, white noise, or choosing quieter workspaces. None of this means you’re fragile. It means your nervous system processes input differently. So yes, if small noises completely break your focus, ADHD is absolutely on the list of explanations, and it’s something we take seriously in assessment and support.