Overstimulated at School or Work? 6 CBT Based Tips to Calm Your Nervous System

What Overstimulation Actually Feels Like

Overstimulation often shows up in ways that can catch people off guard:

• Feeling unusually tired or foggy
• Forgetting small tasks
• Avoidance and procrastination
• Swinging emotions like laughing at how absurd their workload feels one moment, then feeling close to tears the next
• Trouble focusing, restlessness, and reaching for your phone to doom scroll or escape

What sets overstimulation apart from general anxiety is where it comes from. Anxiety often starts with internal worry, the “what if” thoughts that spiral in your head. Overstimulation starts outside of you, with real sensory and environmental input, such as:

• noise 
• light
• crowds
• notifications
• packed schedule. 

In practice, the two frequently overlap, but knowing the difference helps you choose the right tool to use first.

Why Too Much Input Short Circuits Your Brain

Think of your nervous system like a browser with too many tabs open. Each tab, a conversation, a notification, a fluorescent light, a deadline, uses a small amount of processing power. Open enough tabs at once and the whole system slows down, freezes, or crashes. That crash is not a personal failure. It is your brain's built-in way of protecting itself when input outpaces its capacity to process it (Weyn et al., 2025).

Research on sensory processing sensitivity found that overstimulation tends to build across the day, often peaking in the afternoon and evening, and is more likely when people are fatigued, in a low mood, or surrounded by unpleasant noise or visual clutter (Weyn et al., 2025). Recognizing your own patterns, like noticing overstimulation tends to hit hardest after a full day of being on a screen, is the first step toward managing it. If you do tend to notice you become overstimulated from digital demands, you may find the article Trapped in the Feed helpful. 

1. Start With Your Breath

Before problem solving anything, it helps to bring your nervous system out of high alert. Try box breathing or simply slowing your exhale so it is longer than your inhale. Slow, deep breathing activates the parasympathetic nervous system, which is the part of your body responsible for rest and recovery, and has been shown to reduce perceived anxiety and physiological arousal (Magnon et al., 2021). Even sixty seconds of intentional breathing can create enough space to start to think clearly about your next step.

2. Map What Is Actually Overwhelming You

Once you have taken a breath, get specific about what is contributing to the overload. It helps to run through a few categories.

•   Physical environment, such as lighting, temperature, or clutter

•   Your phone, including notifications, group chats, or background scrolling

•   People, including crowded hallways, open offices, or unplanned conversations

•   Life demands, such as an overloaded schedule or an unrealistic to do list

For each one, ask what you can reduce, eliminate, silence, or adjust. That might mean stepping into a quieter hallway between classes, turning off nonessential notifications during a shift, using headphones to dampen background noise, or asking to move a meeting. Small adjustments to your environment often bring your stimulus level down enough to think clearly again.

3. Sort What You Can Actually Control

Once you have identified your triggers, it helps to separate them into what you can control, what you can influence, and what is simply outside your control. A packed classroom or an open concept office is not something you can change on your own, but you might have some influence over where you sit, when you take breaks, or how you use headphones or noise cancelling tools. 

For anything you truly cannot control, the goal shifts from modifying or changing your triggers, to building your tolerance for it. Learning coping skills that help you ride out the discomfort, without it derailing your whole day will be essential for those situations you know you have to return to. If you are not sure where to start, you could explore if CBT could be the right fit for you. 

4. When Overstimulation Turns Into Overwhelm

Reducing external stimulus is often enough on its own, but sometimes the sensory overload lingers long enough to trigger the thoughts and emotions that come with it. Distorted thinking, like assuming you should be able to handle everything without a break, or intense emotions that feel disproportionate to the moment, are both signs that it is time to bring in additional CBT tools. Thought monitoring, gentle self talk, physical movement, and mindfulness practices can all help regulate the mental and emotional side of overwhelm once the sensory piece has settled.

Read more: The Exercise Effect (how movement supports mental health)

5. A Few More Small Adjustments Worth Trying

Beyond breathing and mapping your triggers, a few small habits can lower your baseline stimulus level over time. Building short recovery windows into your day, even five quiet minutes between classes or meetings, gives your nervous system a chance to reset before the next round of input arrives. Preparing ahead, such as setting your phone to silent before a busy shift or packing headphones for a loud commute, can prevent overstimulation before it starts rather than managing it after the fact. Over time, these small, repeated adjustments add up to real changes in how capable you feel of handling a demanding day.

6. When It Is Time to Reach Out

Occasional overstimulation is a normal part of navigating busy school or work environments, but frequent or intense episodes can be a sign that your nervous system needs more consistent support. If you find yourself overstimulated most days, or if it is starting to affect your grades, performance, or relationships, working with a CBT Care Provider can help you build a personalized plan for regulating your nervous system and managing the demands of daily life. Many people who reach this point have been managing on their own for a long time, and support does not need to wait until things feel unmanageable.

If you’re curious about how Cognito’s integrated model of care could support your experience of overstimulation, book a free 15 minute Discovery Session today to speak with one of our CBT Care Providers → Book Now

Disclaimer: This post is for education and self-awareness. It is not a diagnosis or replacement for therapy.

References

Magnon, V., Dutheil, F., & Vallet, G. T. (2021). Benefits from one session of deep and slow breathing on vagal tone and anxiety in young and older adults. Scientific Reports, 11, 19267. https://pmc.ncbi.nlm.nih.gov/articles/PMC8481564

Weyn, S., Greven, C. U., Schmidt, S. J., & Gillebert, C. R. (2025). Sensory processing sensitivity and overstimulation in daily life, an experience sampling method study. Scientific Reports, 16, 2015. https://pmc.ncbi.nlm.nih.gov/articles/pmc12808265