Highly sensitive person (HSP): what it is, what it isn't and how to recognise it in yourself

Feeling more doesn't mean feeling "wrong"

Have you ever been told you're "too sensitive"? That you take everything to heart, that you get tired in crowded places, that you notice things others don't see, that you should just "get over it"? If this sounds familiar, you have probably spent a lot of time wondering what is wrong with you.

Psychology today offers another reading: sensitivity can be a temperament trait, that is, a stable way in which the nervous system processes stimuli, with greater depth and intensity. It is not an illness and it is not a flaw. It is a way of being in the world that has both costs and strengths.

In this article we look at what a highly sensitive person (HSP) is, what it isn't, how it can show up, what research says and what can help. At the end you'll find an invitation to take the test, so you can look at yourself more clearly.

In short: high sensitivity is a trait, not a diagnosis. People who have it process stimuli more deeply and can become overloaded more easily, but they can also pick up on nuances and be enriched by positive experiences. It doesn't explain everything about you, and it shouldn't be confused with anxiety, ADHD or autism, which are different things.

What high sensitivity is

The concept comes from the work of psychologists Elaine and Arthur Aron, who since the late 1990s have written about sensory processing sensitivity: a difference between people in how the nervous system registers and processes what comes from outside and from within, from sounds to emotions.

According to the authors, sensitivity can be recognised by four characteristics, summed up in the acronym DOES:

Characteristic	What it means in everyday life
Depth of processing	You reflect at length, you connect things, you need time to decide, you grasp the meaning beneath the surface
Overstimulation	Too many stimuli, too many demands or too much noise drain you more quickly
Emotional reactivity and empathy	You feel intensely, you notice other people's moods, you are easily moved
Sensitivity to subtle stimuli	You notice details, smells, lights, tones of voice and changes in your surroundings that others don't register

Sensitivity is not an on/off switch: it is spread along a continuum, like height or extraversion. Estimates of how many people are highly sensitive vary depending on research methods, often around one person in five, and some studies suggest a higher percentage. This means you are not rare and you are not alone.

More recent research frames high sensitivity within a broader idea, that of environmental sensitivity: some people respond more intensely to both difficult and good environments. We'll come back to this later.

What high sensitivity isn't

Talking about sensitivity helps, but only if it doesn't become a label that explains everything. Here are some important distinctions.

• It isn't a diagnosis. It is a temperament trait described by psychological research, not a category in the diagnostic manuals. A high sensitivity test cannot tell you whether or not you have a disorder.
• It isn't anxiety. A sensitive person is not necessarily anxious. However, if the nervous system is often overloaded, anxiety can find its way in more easily. To find out more, see Anxiety in the body.
• It isn't ADHD or autism. They may overlap in some experiences (sensory sensitivity, for example), but they are different conditions, with their own criteria and assessment pathways. Being sensitive says nothing, on its own, about ADHD or autism, and vice versa.
• It isn't introversion. Many sensitive people like to be alone to recover, but some are extraverted and seek out stimulation and company. Everyone needs to recover; what changes is how they go about it.
• It isn't fragility or weakness. Feeling deeply doesn't mean not being able to cope. It often means investing a lot of energy in what you perceive.
• It isn't a virtue or a superpower. It is a way of functioning, with advantages and challenges. Idealising it can be as heavy a burden as denying it.

How it shows up in everyday life

Not every sensitive person will recognise themselves in everything. Here are the areas where high sensitivity is most often felt.

• In the body: tiredness after days full of stimuli, tension in the shoulders and jaw, headaches, digestive problems, difficulty falling asleep after an intense day, strong reactions to caffeine, hunger, cold or noise.
• In the senses: discomfort with bright lights, smells, labels, fabrics, overlapping sounds, crowded spaces; intense pleasure in music, nature, art and flavours.
• In emotions: intense emotions that echo for a long time, being easily moved, strong reactions to criticism, empathy that sometimes absorbs other people's moods.
• In thoughts: deep reflection, many connections, difficulty deciding quickly, a tendency to ruminate on what was said or done.
• In relationships: attention to other people's needs, difficulty saying no, needing time alone after social encounters, deep closeness with a few people, struggling with conflict.
• At work: quality and care over details, difficulty with open-plan offices, tight deadlines and multitasking; risk of stress building up and of exhaustion if there is no room for recovery.

If you recognise yourself, try to look at these signs without judging them: they are information about how your system works, not verdicts about you. Some of these signs, especially if they are intense or new, may also have medical causes or other meanings: if in doubt, talk to your doctor or a psychologist.

What research says

High sensitivity has been studied for about thirty years, and the picture is still being built. Here are the most solid points, together with the limitations.

A trait that involves the nervous system

Sensory processing sensitivity is described as a common trait, partly heritable and also found in many animal species: having individuals who are more and less reactive to the environment within a population may be an advantageous evolutionary strategy. Some neuroimaging studies suggest that highly sensitive people show greater activation in areas linked to attention, information integration and empathy. However, samples are often small and the results should be read with caution.

Environmental sensitivity: not just more vulnerable

A 2019 critical review places sensitivity within the broader framework of environmental sensitivity. The idea is that sensitive people react more intensely to everything: in difficult environments they are more exposed to stress and its effects; in favourable environments (safe relationships, support, positive experiences) they can benefit more. This is why sensitivity shouldn't be read as fragility, but as greater permeability to what happens around you.

The limitations

• Sensitivity is measured mainly with self-report questionnaires. There are no shared objective measures, and researchers themselves are calling for more reliable ones.
• It is not always easy to distinguish it from other traits and from experiences such as anxiety, prolonged stress or trauma, which can make people more reactive.
• The term "highly sensitive person" is not a diagnostic category and has no clear-cut boundaries.

Knowing what research says is meant to give you a language, not to decide who you are. Your own way of feeling remains the best source of information about you.

Strengths and challenges of a sensitive nervous system

The strengths

• Depth: you can look beneath the surface and pick up on nuances, which can make you attentive, creative and intuitive.
• Empathy: you notice other people's needs and can build genuine, caring relationships.
• Appreciation: beauty, music, nature, a kind gesture touch you deeply and nourish you.
• Care and quality: you tend to do things carefully and to look after the people around you.
• Openness to change: research suggests that sensitive people may benefit more from supportive environments and relationships.

The challenges

• Overload: too many stimuli or too many demands quickly raise tension. The body may react with tiredness, irritability, headaches or a need to withdraw.
• Slow recovery: after an intense day, it may take longer to feel well again.
• Self-criticism: having heard "you're overreacting" or "you're too much" can lead you to feel ashamed of your sensitivity and to hide it (this is sometimes called masking, an adaptive mask).
• Difficulty with boundaries: paying attention to others' needs can lead you to say yes when you would like to say no.
• Risk of exhaustion: without room for recovery the load builds up, and it can open the way to anxiety, chronic fatigue and burnout.

When the nervous system gets overloaded

Think of the nervous system as a house with very large windows: a lot of light comes in, and a lot of wind too. When stimuli exceed what you can process, the body either activates (heart, breath, muscle tension) or shuts down (tiredness, detachment, a need to close off). It isn't "being difficult": it is a regulation signal. To understand better how it works, see the guide on how the nervous system regulates itself.

Further reading: The window of tolerance: how to recognise it and widen it.

What can help

It isn't about becoming less sensitive, but about building conditions in which your sensitivity weighs less and nourishes more. Some ideas to try gradually, one at a time:

• Name what is happening. Recognising overload ("I'm not weird, I'm saturated") reduces shame and lets you step in earlier.
• Small recoveries during the day. A few minutes of silence, a break outdoors, softer light, headphones: micro-recoveries stop the load from building up.
• Look after your environment. If you can, reduce noise, light and interruptions where you live and work; carry something that helps you feel grounded (a scarf, an object, some water).
• Try setting boundaries. Saying "let me think about it and get back to you" is already a boundary. You can start with less charged situations.
• Come back to the body. Feeling your feet on the ground, lengthening your out-breath and moving gently help the nervous system regulate. In the free kit you'll find short practices to get started.
• Choose relationships that nourish you. Research suggests that sensitive people gain a great deal from supportive relationships: choosing carefully who you spend time with isn't selfish.
• Make room for expression. Writing, drawing, moving and making music are ways of giving shape to what you feel without having to explain it.
• Don't face it alone. Psychological support can help you understand how you work, make sense of your story and find strategies that suit you.

Every sensitive person has different rhythms and needs: what helps one may not help another. If a gesture increases your discomfort, stop: there is no performance to achieve.

Do you recognise yourself in these sentences?

For many people, the first step is hearing someone else say things that resemble their own experience:

• "After a full day I need silence, even if I enjoyed it."
• "I immediately notice other people's moods, even when nobody is speaking."
• "Bright lights, noises, smells or fabrics bother me more than they bother others."
• "A criticism stays with me for days."
• "People tell me I take everything too much to heart."
• "I need time to decide and to reflect before acting."
• "Music, nature and art move me deeply."
• "I feel guilty when I have to say no or step back."

If you recognised some of them, it doesn't mean there is something wrong with you, nor does it necessarily mean you are "highly sensitive": it is a starting point for looking at yourself with more curiosity.

Would you like a first orientation? The HSP test in the tests section of the site helps you understand how closely your experiences resemble those described by research on high sensitivity. It takes a few minutes, it's free and confidential. It is not a diagnosis and says nothing about ADHD or autism: it is food for thought, which you can bring to a session if you wish.

Take the HSP test

Frequently asked questions

What does it mean to be a highly sensitive person?

It means having a nervous system that processes stimuli with greater depth and intensity: you notice more details, feel emotions more deeply and become overloaded more easily. It is a temperament trait, not a diagnosis.

Is high sensitivity an illness or a disorder?

No. It is neither an illness nor a disorder, but a characteristic described by psychological research. It can bring challenges, but also strengths. Only a professional can assess whether other difficulties are present.

How many people are highly sensitive?

Estimates vary depending on study methods, often around one person in five, with some research suggesting higher percentages. Sensitivity is a continuum, not a yes or no.

Are high sensitivity and anxiety the same thing?

No. A sensitive person is not necessarily anxious. However, if the nervous system is often overloaded, anxiety can appear more easily, and it is useful to know how to recognise it.

Does being sensitive mean having ADHD or being autistic?

No, they are different things, although some experiences (such as sensory sensitivity) can overlap. High sensitivity says nothing, on its own, about ADHD or autism. If in doubt, a specialist assessment is needed.

Can you stop being too sensitive?

Sensitivity is a stable trait, and there is no need to "stop". What you can do is get to know it, regulate overload and create environments and relationships in which you feel more at ease.

When to ask for help

Sensitivity in itself doesn't require any intervention. It may be helpful to talk to a professional if:

• you often feel overwhelmed or exhausted and rest isn't enough;
• anxiety, sadness or irritability have lasted for weeks and are affecting your work or relationships;
• you feel ashamed of how you feel or hide yourself to fit in with others;
• you have physical symptoms (headaches, digestive problems, sleep problems) that keep coming back without a clear cause: in this case, talk to your doctor first;
• you feel you can no longer manage the load on your own.

If you are struggling right now or having thoughts of harming yourself, don't stay alone: call 112 or your local emergency services, or go to the nearest emergency department.

Where you can start

• If you want to understand yourself better: in the tests section of the site you can take the HSP test, free and confidential. It is not a diagnosis. Take the HSP test →
• If you want to talk about it: the discovery call is a free first meeting where you can share what brings you here and work out together which path makes sense for you. Book the discovery call →
• If you want to start from the body: Balance and group somatic art therapy are guided experiences that work on regulation and presence, in a welcoming setting. They don't replace individual psychological support. Discover Balance → · Discover somatic art therapy →

This article is for information only and does not replace a medical or psychological assessment.

About the author

Francesca Peruzzi, clinical psychologist with a Jungian and psychosomatic orientation, and art therapist. She is registered with the Order of Psychologists of Lombardy, Italy (no. 21385). She helps people recognise the language of the body and build a sense of safety, with an approach that brings together mind, body and creativity.

Last updated: 9 October 2026.