The Complete Beginner’s Guide to the Highly Sensitive Trait

Were you described as sensitive growing up, reacting to life with big feelings? Have you been called “quiet” or “shy”, or told to come out of your shell? Do you notice details others overlook, take longer to prepare for and recover from certain activities, and feel more drained by noisy, crowded places?

If any of this sounds familiar, you might be a “highly sensitive person” (HSP). You are part of the 20-30% of the general population who have a trait called sensory processing sensitivity (SPS).

For sensitive people growing up in cultures where innate sensitivity is not accepted, they might believe they are broken and abnormal. They may seek to fix themselves, perhaps by masking their authentic thoughts, feelings, needs, and preferences to fit in.

But sensitivity isn’t the problem. In fact, it could provide answers to many of the problems we face in today’s chaotic world.

Sensory processing sensitivity is a biological trait found across more than 100 species. It isn’t just an individual survival strategy. It plays a role in the bigger picture, helping us both survive and creatively flourish as a social species.

In this beginner’s guide, I share ideas from articles, conversations, and resources that have helped me over the years. It is for anyone who has ever felt “too much” or “not enough”, whether you’re new to the term “highly sensitive person”, have suspected it for years, or know someone it describes. I’ll walk through what it means to be highly sensitive, the current scientific research on it, and recommendations for relating to it and growing with it in your life.

Have you ever sat in a perfectly normal coffee shop yet felt like your nervous system was on overdrive for no obvious reason? Have you heard a piece of news that barely registered for others, yet felt it settle into your body like a stone?

Unconscious Awareness

The highly sensitive nervous system absorbs a great deal of environmental and sensory information as it scans the world for signs of safety and threat. It processes that information more deeply than less sensitive nervous systems. We might think of it as having a wider camera lens aperture, which lets in more light and, as a result, requires more internal processing time.

For highly sensitive people, our awareness can be an invaluable resource for survival. But it is also easily overwhelmed by the noise and pressures of the modern world, and as such, it can be overlooked and ignored.

There is a difference between being alert and being aware. When we are alert, we focus on details that indicate or confirm the presence of danger. A state of awareness, on the other hand, is a broad view of the bigger picture, subconsciously scanning and processing for anomalies.

Physical Sensitivity

Sensory processing sensitivity refers to how strongly a person’s body responds to external stimuli.

Our nervous system may react strongly to stimuli others barely notice, such as bright lights, loud noises, strong smells, certain fabrics, crowded spaces, and changes in temperature. This is not a choice or preference.

However, understanding how physical sensitivity affects us can help us make choices that align with our needs. We can shape our environments and routines by learning to distinguish between needs (non‑negotiable biological) and preferences (nice-to-have, non‑essential, personality‑informed).

Mental Sensitivity

The mental aspects of sensory processing sensitivity influence how HSPs navigate various situations, balancing swift, decisive actions (the capacity for rapid processing) with periods of reflection (providing space for deep processing). This natural oscillation necessitates that individuals understand their needs and work with them to foster a sustainable and energising rhythm.

Overstimulation

If you are an HSP, you have likely experienced overstimulation in life. It can feel like there’s something wrong with us and that we are maladapted to the world. In actual fact, the world is often maladapted to the natural and innate sensitivity that arises within it. Society expects our nervous systems to prepare, cope, and recover in unnatural ways. This is a reason why overwhelm and burnout are on the rise for everyone.

Hypervigilance

Vigilance, like alertness, helps us read the room and pick up subtle cues. But hypervigilance occurs when it overflows without the opportunity to recalibrate and rest. Because of its increased processing depth and responsiveness, it is common among highly sensitive people. Due to something called “differential susceptibility“, it can have an even greater impact on those who grew up in or find themselves in an unpredictable environment.

Moral Sensitivity

Have you ever felt like you are carrying the weight of the world’s wrongs inside your body? Do you feel torn between staying true to your values and going along with what is considered “normal”? Many HSPs have an instinctive social concern for fairness, justice, and the well-being of the world around them. If you have ever felt things deeply when the world feels unfair, you are not alone, and you are not overreacting.

Deep Processing

Those at the heart of sensitivity research point to depth of processing as the most important aspect of the trait. Deep processing requires time, space, and silence. If you have ever felt slow to respond in a conversation only to have the perfect insight hours later, or needed to retreat after a busy day to untangle your experiences, it is because your natural processing requires that time.

If you have ever mentioned being “highly sensitive” to a friend, doctor, or therapist who isn’t familiar with it, you might have been met with a blank look, or even scepticism. The term might sound like something from an online quiz or a self‑help trend. But Sensory Processing Sensitivity (the technical term) is real, measurable, and underpinned by three decades of peer‑reviewed science.

• Brain scans: When highly sensitive people view emotional scenes, their brains show increased activity in regions linked to awareness, empathy, and deep processing. The insula and mirror neuron systems light up more than in less sensitive people.
• Genetics: Researchers have found differences in the serotonin and dopamine systems linked to sensitivity. This is not something you chose or learned. It is wired into you.
• Depth of processing: In experiments, sensitive people take longer to make decisions when subtle cues are involved – not because they are slow, but because their brains are taking in more data.

Differential Susceptibility

One of the most important discoveries is differential susceptibility. In simple terms: the more sensitive you are, the more your environment affects you, for better or worse. In a harsh or chaotic environment, an HSP may struggle more than their less-sensitive counterparts. Conversely, a supportive, nurturing environment benefits them more than others. This spectrum of sensitivity is often depicted through the metaphor of orchids, tulips, and dandelions.

I prefer comparing it to microphones. A sensitive condenser mic is uniquely effective in quiet, controlled spaces. It is designed to pick up more subtle details, and it comes into its own in the right space. But in a loud environment, it can get overwhelmed by noise. A dynamic mic has a narrower frequency response and can work in almost any environment because it picks up less background noise.

How is Sensitivity Measured and Defined?

It has been a challenge to measure SPS across different populations. But new tools that combine brain imaging, physiological data, and genetics are helping us understand heightened sensitivity in the modern world. The interaction between nature and nurture is complicated, varied, and almost impossible to untangle when it comes to identifying and measuring sensitivity.

The Impact of The Internet on Popular Understanding of High Sensitivity

It’s clear that the internet has affected the accuracy of information about the SPS trait. Especially in our algorithmic world, where division sells. When I see high sensitivity pitched as a superpower, I don’t believe that helps create mainstream openness to greater understanding and awareness of the trait. In my opinion, we need to emphasise how normal it is in the context of our natural human differences.

Keeping Up With Sensitivity Research

The science around sensory processing sensitivity is constantly growing. There is an annual conference on Sensitivity Research where researchers are invited to share the latest advances in the field.

Highly sensitive people face natural challenges because of how our nervous systems interact with our environment. These challenges can be exacerbated by a world often not designed to provide the conditions for deep processing.

We need to validate the experiences of HSPs and explore alternative approaches to aspects of life where sensitivity is undervalued or even diminished. An accommodating understanding of sensitivity could help not only highly sensitive people but everyone. After all, there’s a reason the trait has evolved with us as a species. It’s good for the hive.

Navigating The Workplace as a Highly Sensitive Person

Perhaps the most obvious source of struggle for a highly sensitive nervous system is the workplace. When HSPs find themselves in a stressful environment, it can affect them physically and mentally, with overstimulation leaving them disconnected and/or unable to bring their best to their work. Even roles they love can be compromised by the conditions of open-plan offices, constant interruptions, cultural pressures to perform, and a lack of quiet space for focus.

Most HSPs don’t follow a script. We connect dots, experiment, and create our path along the way. This can apply to the idea of finding meaningful work. If you’re anything like me, you encounter unexpected surprises and stumble into roles and projects you couldn’t have imagined beforehand.

It Can Be Difficult Asking for Help

Maybe you find it natural to help others, but struggle to ask for help yourself. This is common among highly sensitive people, especially those who had to assume over-responsibility caring for others growing up.

Health and Wellbeing For HSPs

There is no one-size-fits-all advice for highly sensitive people. We have different tastes and preferences. However, it is worth bearing in mind that popular and mainstream advice might not work for you. Dr Ted Zeff was one of the researchers and authors who influenced me when I first learned about high sensitivity. He discussed the physiology of sensitivity and how we may need to trust our gut (literally) and respond intuitively to what our body is saying.

For some HSPs, their bodies react more intensely to stimulants and depressants. Likewise, differential susceptibility reinforces the idea that they might feel the benefits of a good night’s sleep, a nutritious meal, and exercise particularly strongly.

Productivity Culture and The Pressure to Perform

The pressure of modern life obviously affects highly sensitive people. But it is not just the relentless demands and stress. The pressure to perform is also a challenge. Many HSPs value authenticity, honesty, and integrity, all of which risk being eroded in a world that rewards perception over substance. If we feel we have no choice but to join in, it can leave us disconnected from ourselves and from the sense of meaning that fuels and sustains us.

As I mentioned, we might naturally be more experimental than conceptual in our approach to success. In other words, we may find joy in projects that reveal meaning and purpose along the way, even if they turn out very differently from what we imagined at the start. Yet the world is weighted towards the conceptual, with progress and success tracked, judged, and optimised by specific productivity metrics. This can take away the freedom to be curious, explore, and play. All of which require openness to slow down and take our time, key ingredients of a more experimental approach.

Information Overload

We are immersed in a constant flow of negative news and online noise. This can accumulate in the highly sensitive nervous system. Without creative outlets to process it, the unending scale of dread can overwhelm us. This can lead to a heightened stress response and, eventually, to shutdown and desensitisation.

The Weight of Expectation and Shame

HSPs sometimes describe feeling like the proverbial black sheep. This is not inherently bad. However, it can be experienced negatively if our sensitivity is not understood or accepted. We may compare ourselves to others and feel ashamed of what we perceive as inadequacy and brokenness. This can exacerbate susceptibility to perfectionism, people-pleasing, and feelings of inadequacy. Or to shrinking back, moving into the shadows, and seeing others as more deserving of space than us.

Depleted Social Energy

Like introverts, highly sensitive people may find their social batteries drain more quickly than others’. This can be frustrating, especially when you’re having a good time with people. You might suddenly hit a wall or feel you don’t have the spoons to attend an event you were looking forward to. There’s rarely much value in “pushing through”, as the experience will be compromised and the required recovery time will be longer.

What impact does high sensitivity have on the world around us? How can it help keep us safe and grounded in a time of accelerating technological change? It touches everything in different ways and can feel like a blessing as well as a curse at times.

Picking Up on Everything

Have you ever walked into a room and felt the weight of the mood before anyone spoke? There is a social component to the highly sensitive trait. It can feel as if we’re imagining things when our nervous system picks up cues others might overlook.

Social rituals like icebreakers often backfire for HSPs. Many (me included) feel increased stress during “get to know you” games. These activities are not only uncomfortable but also unnaturally overstimulating, putting our nervous systems in overdrive.

While this might be due to social anxiety, there are many factors at play for a nervous system that is tracking the environment for information to process and use before taking action. The HSP ‘pause to check’ tendency may be overridden by the pressure to ‘get involved’ prematurely. This adds unnecessary overstimulation to an already highly active situation.

Learning To Hide Our True Colours

Do you ever dim your enthusiasm, quiet your observations, or pretend not to notice things you clearly see? Many sensitive people learn to hide parts of themselves to fit in. I created a series of HSP colour swatches to notice which parts of ourselves we may have learned to conceal.

The Sense of Humour

What do you find funny? Sensitivity does not have to mean a life weighed down by heavy emotions. Humour is one of our most important senses.

Being Observed

For many, me included, the item on the original HSP self-test, “When I must compete or be observed, I become so nervous that I do much worse”, resonates strongly. Yet, there are many activities, forums, and situations, where we are watched, assessed, and judged by others. It’s inevitable. And there are things we can do to cope and ease the pressure. How do you build inner stability as a deeply sensitive person?

Depictions of High Sensitivity in Culture

There aren’t many direct portrayals of highly sensitive people in popular culture. And while it may be a slightly niche book, it was refreshing to read The Forest of Wool and Steel. It is a balm for those who’ve felt out of step with society’s narrow definitions of success or crave a deeper, slower, more meaningful way of living.

While not explicitly about high sensitivity (I’m not sure I would enjoy a formally identified HSP protagonist anyway), it depicts experiences and observations that may be familiar to sensitive people. And it does so without hype or heroics. It also provides a normalising role for sensitive men without overselling the strength of sensitivity in true masculinity. I’ve noticed Western culture sometimes falls into this, believing it will make the trait sound more appealing to men. Personally, I wonder if this actually detracts from the message.

I believe all humans are creative. It’s baked into our relationship with life. And for highly sensitive people, creativity brings us into connection with who and how we are.

Our creative spirit is found in the subtleties we notice, the connections we develop, and the change we care about bringing to fruition. It helps us make sense of ourselves, find hope for the future, and speak to others beneath and beyond the limits of language.

We can access our creativity here and now, where we are, and with whatever tools we have at our disposal.

The Highly Sensitive Creative Life

A recurring theme in my conversations with sensitive people who have come to understand their natural creativity is that creativity is not just about making art. For sensitive people, it is a fundamental element of humanity and a natural expression of life.

A Creative Processing Practice

A creative processing practice can help us make sense of the most absurd, strange, and disturbing elements of life. It can also help us reach a state of calm connection, readying the canvas for whatever comes next.

Creativity happens in the small moments. It might mean making art. Or it might mean choosing to say the words that pop into your head, knowing they could make a positive difference to someone.

It’s about changing the trajectory of things. From how they would have been if we were not part of the moment, to how things could be now we are here.

Five Necessities for Highly Sensitive People

Elaine Aron encourages highly sensitive people to do five things as we learn more about who we are in light of the trait.

First, understand that the trait is real.

Second, reframe your childhood in light of the trait. Take time alone or with someone else to contextualise childhood experiences within the sensitivity frame.

Third, heal past wounds. Give yourself space and grace to process experiences you continue to hold in your body. The story is not set in stone.

Fourth, do not try to fit in. You need time to absorb and process. The societal pace and rhythms are unlikely to support this.

Fifth, spend some time with other HSPs. A calming and creatively generative energy arises when we have permission to be ourselves in light of the trait.

Reframing Sensitivity (“The Gentle Rebel” Book)

What story did you believe about yourself growing up? Many highly sensitive people describe being misunderstood as children. For example, being labelled “shy”, “quiet”, or “too sensitive”. These stories can leave us feeling out of place, wrong, and like we do not fit the expected mould.

My way of processing what I learned about high sensitivity became a book. Originally written in 2014 and revisited in 2023, The Gentle Rebel blends personal stories, humour, and research that initially helped me understand myself in a new way. Now, I hope it can inspire other HSPs to reframe their experiences and embrace their unique way of navigating the world.

Creativity and Coming Home to Ourselves

I recommend using creativity to gradually tell your own story and find your voice in light of your sensitivity. Don’t start with the heavy stuff. Just let your voice take its place at the heart of your story, potato by potato.

Experiment with different ways to explore your story. Notice what works for you. My friend Tuula went through this after experiencing burnout. She found that photography helped her see things in a way that made sense. Her journey led her to get up close and personal with ice. She takes the most stunning macro photographs of ice that transport you to a different dimension.

How can we raise understanding and awareness of the trait of high sensitivity?

It takes time, patience, and work.

But I believe we’re living in a time when it’s more necessary than ever to return to our senses and embrace the gifts of sensitivity. One reason I believe we have entered these times is precisely that we have diminished the need for sensitive voices in our collective endeavours. Humanity (as with those many other species identified) needs its HSPs. There’s a reason the trait has endured. It’s a vital part of our wider communal survival mechanism.

So how do we fight for the space it needs to rise?

It Starts With The Environment

Because of differential susceptibility, we know that the environment is everything in creating the conditions for highly sensitive people to bring the best of themselves to the world. HSPs are written off when expected to function in the wrong places. And if we never experience conducive conditions, we will continue to believe something is wrong with us.

We need to accommodate sensitivity with this understanding of the trait. Accommodation is about widening opportunities and possibilities, not making concessions and limitations. When everyone can explore their potential, the whole hive benefits.

Fighting For The Change We Need

Many highly sensitive people have a heart for justice, fairness, and caring for others. The way we engage in protest may look different from the stereotypical forms of activism we are used to. It doesn’t need to burn us out, and we don’t need to do it alone. Bringing more sensitivity into the world isn’t just about highlighting our own experiences; it’s about carrying the torch and caring for others. It’s about making space for everyone to be themselves and explore the fullness of their many potentials.

I care about this, and I’m sure you do too. If so, I’d love to hear from you. Join me in the community or send me a message.