Understanding Stress: Your Window of Tolerance and How to Thrive
We all experience stress, but what feels overwhelming to one person might be perfectly manageable for another. So how do we know when things have become too much?
The truth is, there’s no single answer. Our experiences, circumstances and the support we have around us all influence how we respond to life’s challenges.
Yet recognising and acknowledging our own stress isn’t always easy. Saying “I’m stressed” can feel like admitting we’re not coping.
We might look at other people who seem to have far more to deal with and convince ourselves that our own difficulties aren’t significant enough to worry about. So we minimise how we’re feeling, put on a brave face and carry on.
But stress doesn’t disappear simply because we choose not to acknowledge it. Over time, its effects can begin to show up in different areas of our lives, affecting our sleep, energy levels, concentration, physical health and relationships.
Things we would ordinarily manage quite easily can start to feel difficult, and we may find ourselves becoming more irritable, anxious, withdrawn or exhausted.
Recognising these changes is an important first step to take. It allows us to understand what’s happening and consider what we might need to do differently.
Understanding Your Window of Tolerance
One helpful way of understanding how we respond to stress is through the concept of the window of tolerance.
Originally developed by psychiatrist Dr Daniel Siegel, the term describes the range of emotional arousal in which we’re generally able to manage our emotions, think clearly and respond to everyday situations without becoming overwhelmed.
When we’re within our window of tolerance, we can experience difficult emotions without necessarily being consumed by them. We’re better able to deal with challenges, make decisions and recover when things don’t go to plan.
However, when the demands placed upon us exceed our capacity to manage them, we may move outside this window. This can happen in two different ways.
Hyperarousal: When everything feels too much
You might recognise this as feeling anxious, overwhelmed, agitated or constantly on edge. Your thoughts may race; you might find yourself worrying more than usual, and relatively small things can trigger strong emotional responses.
Physically, you may experience muscle tension, a racing heart or difficulty sleeping. Your nervous system is in a heightened state of alert, preparing you to respond to what it perceives as a threat.
Hypoarousal: When you start to shut down
Sometimes, rather than becoming more activated, we move in the opposite direction.
We might feel flat, disconnected, emotionally numb or unable to motivate ourselves. Everyday tasks can feel like an enormous effort, and we may withdraw from people or activities we would ordinarily enjoy.
Both responses can occur when we’re struggling to manage the demands we’re facing. They aren’t signs of personal failure, but understanding them can help us recognise when we need additional support.
Our window of tolerance isn’t fixed. Our capacity to manage stress can vary depending on our physical and emotional wellbeing, past experiences, current circumstances and the resources available to us.
By developing a greater awareness of our responses and finding ways to support ourselves, we can work towards managing difficult situations with greater flexibility and confidence.
The Role of Nervous System Regulation
So how can we become better equipped to manage stress? One important part of the process is learning to regulate our nervous system.
Our nervous system is constantly responding to what’s happening both around us and within our bodies. It plays an important role in how we react to potential threats, pressure and challenging situations.
When we feel threatened or overwhelmed, our body’s stress response can become activated. This is useful when we need to respond to immediate danger, but prolonged stress can negatively affect our physical and emotional wellbeing.
Experiences that help us feel safe, supported and connected can encourage our nervous system to settle, making it easier to think clearly, manage our emotions and respond to challenges.
Of course, the aim isn’t to remain calm all the time. Stress is a normal part of life, and difficult emotions aren’t something we need to eliminate.
Instead, nervous system regulation is about recognising when we’re becoming overwhelmed and developing ways to help ourselves recover.
Over time, practising these skills, alongside building supportive relationships and looking after our wider wellbeing, may help us become more flexible in how we respond to stress.
Developing Strategies to Support Your Window of Tolerance
There is no single approach to managing stress that works for everyone. What helps one person may not work for another, and our needs can change based on what we’re experiencing.
1. Recognise your stress signals
Start by becoming more aware of how stress shows up for you.
Do you become irritable, anxious or restless? Do you withdraw from others, procrastinate or struggle to concentrate? Perhaps you notice physical tension, changes in your appetite or difficulty sleeping.
Learning to recognise these early signs gives you an opportunity to respond before stress becomes more difficult to manage.
2. Practise nervous system regulation
Activities that encourage a sense of calm and safety can help us settle when we’re feeling overwhelmed.
Slow, comfortable breathing, gentle movement, meditation, yoga, spending time in nature, or simply sitting somewhere peaceful may all be helpful.
The important thing is to find what works for you. Some people find stillness relaxing, while others feel better after moving their bodies or spending time with someone they trust.
3. Look after your physical wellbeing
Our physical and psychological wellbeing are closely connected, yet the routines that help us feel well are often the first things to slip when we’re stressed.
We might skip meals, rely on caffeine to get through the day, move less or sacrifice sleep because there’s simply too much to do.
Eating regularly, getting enough rest, enjoying physical activity and making time to recover can all help support our ability to manage life’s demands.
4. Make space for connection
We aren’t meant to manage everything alone.
Talking to someone we trust, spending time with comfortable people, or seeking professional support helps us gain perspective and feel less isolated.
Supportive relationships also provide a sense of connection and belonging, which can be particularly valuable during challenging periods.
If stress is persistent or starts to affect your daily life, speaking to your GP can also be an important step towards getting the right support.
5. Look at what you can change
Regulation strategies are valuable, but they shouldn’t become a way of teaching ourselves to tolerate circumstances that genuinely need to change.
Sometimes stress is telling us something important about the demands being placed upon us.
Are there responsibilities you could reduce? Boundaries you need to establish? Conversations you’ve been avoiding or support you could ask for?
We can’t always change our circumstances, but where change is possible, addressing the source of our stress can be just as important as learning how to manage our response to it.
If you’re looking for more ways to manage stress, the NHS offers practical guidance on recognising stress and making small changes to support your wellbeing.
Moving Beyond Coping and Learning to Thrive
When we’re stressed or overwhelmed, our immediate priority is often simply to get through the day. We focus on what needs doing, deal with whatever comes our way and do our best to keep going.
And sometimes, that’s enough. There are periods in life when coping is all we can reasonably expect of ourselves.
But when we spend too long in this mode, it’s easy to lose sight of what it actually means to feel well.
Thriving is about giving our wellbeing attention even when things are going smoothly. It’s making time for the people and activities we enjoy, getting enough rest, looking after our physical health and recognising when something in our lives needs to change.
As we develop a better understanding of our stress responses and find ways to support ourselves, we may also discover that we’re better equipped to handle difficult situations. Challenges that once felt overwhelming can become more manageable, and we may find it easier to recover when things don’t go to plan.
Of course, none of this means we’ll stop experiencing stress. Difficult days are part of life, and there will always be circumstances beyond our control.
But we shouldn’t have to reach breaking point before we start looking after ourselves.
Perhaps that’s the most important thing to remember this Stress Awareness Week. Our wellbeing deserves attention every day, not just when life becomes too much.
