In the open-plan office on the fourth floor, Prang is the first to know her manager is in a bad mood. Nobody has to tell her. A coffee cup set down a little harder than usual, a quicker rhythm to his walk, a short sigh behind the monitor — that is enough. Prang has collected every signal by nine in the morning and shifts herself into quiet-working mode immediately. Better not to raise the budget today. Better not to walk past his desk too often. Better answer messages faster than usual.

Her teammates like to say Prang is the best reader of people in the office. What nobody knows is that this skill has no off switch. Home at eight in the evening, she sits down on the sofa and finds her shoulders still clenched, her jaw still tight. A single message notification sounds and her heart pounds as though something urgent has happened — it is a shop promotion. She leaves a series playing without watching it, because her ears are still listening for footsteps in the corridor outside. Night after night, Prang asks herself: “why is sitting still and feeling at ease the hardest thing I do all day?”

What Prang is living with is hypervigilance: a state in which the nervous system stays aroused and scans for signals of danger constantly, even in situations where no threat is present. It usually presents as startling easily, reading the faces and postures of everyone nearby automatically, being unable to relax, and chronic exhaustion from an arousal that never gets to stop. This state is associated with experiences that taught the nervous system to believe the world is not safe — psychological wounds, or growing up in an environment that could not be predicted.

What hypervigilance is, and how it differs from ordinary caution

Caution is a gift from nature. Walking down a deserted lane at night with the senses alert, glancing for cars while crossing a road — that is the alarm system doing exactly its job. And when the situation passes, the system settles on its own.

Hypervigilance differs in that the system does not settle. It keeps watching even in one’s own bedroom, among close friends, on a day off with nothing to be concerned about. The term is usually discussed in psychology as one of a group of symptoms of heightened arousal, found in a number of contexts — from accumulated stress and anxiety through to the aftermath of psychological wounds.

Think of a car alarm with its sensor set to maximum. If the car used to be parked in a lane where thefts genuinely were common, that setting was very intelligent — it protected this car more than once. But today the car is parked somewhere safer, while the sensor is still set to the same maximum sensitivity. That same sensitivity has become a burden: a leaf falling on the hood sets it off, a cat jumping past sets it off, and the owner never gets a full night’s sleep. The problem is not that the alarm is broken. It is working too well.

Signs of hypervigilance that many people miss

People with hypervigilance are often misunderstood as simply having a certain disposition, because it hides itself so well.

Physically, it usually presents as startling easily at a sound or an unexpected touch; shoulders and jaw clenched without noticing; poor sleep and waking easily, as though the ears had to keep listening to the surroundings all night; and chronic fatigue that is hard to account for. These symptoms may have a number of causes, physical and psychological alike.

Behaviorally, many people always choose the seat with a view of the door, feel uneasy when someone is behind them, scan the expression and tone of everyone in the room automatically, and read a short message as a possible sign of displeasure. So rest never feels like rest, because the alarm system is running at maximum the whole time.

In relationships, this state usually creates exhaustion on both sides, with neither at fault. One person is tired from watching; the other is tired from feeling watched, or from having their intentions read into. An ordinary sentence such as “let’s talk later” may set off the whole alarm system, when all it concerns is arranging a time.

Why the system was set this sensitive

Research on stress and psychological wounds broadly finds heightened arousal associated with experiences in which the nervous system learned that the environment was unpredictable or unsafe, particularly where those experiences continued through the period when the system was still developing.

A child who had to read an adult’s mood in time for their own safety. A child whose home was quiet only briefly before the next storm. A child for whom allowing themselves to relax was read as carelessness. Their nervous systems did the most intelligent thing available in those circumstances: turned the sensitivity to danger up to maximum and held it there. Prang’s accurate skill at reading people is therefore not a talent that arrived from nowhere. It is an ability trained in an arena she did not choose. And on the day the context of her life changed, the system never received word that the war was over.

For anyone currently still in an environment that is genuinely unsafe, your vigilance is not a disorder. It is a reasonable response to a real situation, and what needs care first is your own safety. If the situation involves a relationship in which there is control, intimidation, or harm, Thailand’s Social Assistance Center hotline, 1300, has people ready to listen and to help assess the situation at any time.

When to see a professional

If constant arousal is interfering with your sleep continuously, if accumulated fatigue is affecting your work, if relationships are strained by interpretation and watchfulness, or if feelings and images from old events are returning alongside it, a mental-health professional who works specifically with psychological wounds (trauma-informed care) belongs near the top of the list. You do not have to force yourself to work out which event set the system this way, or to revisit childhood memories that have already faded. Begin with what your body is telling you today. And if at any point what is inside becomes more than you can carry alone, Thailand’s mental health hotline, 1323, is staffed by people who will listen.

How hypnotherapy approaches hypervigilance at NBRH

At NBRH we use hypnotherapy as our principal approach to emotion, physical sensation, the meaning a person holds about themselves, and the automatic responses still connected to early experience.

With hypervigilance, what we attend to is what the system is doing in the present: shoulders held clenched, a heart that jumps at a notification. What is notable is that a good number of people in this state say they do not know how to relax — which is entirely understandable, because for a system that has been watching for a long time, relaxing once felt like lowering its guard. Our work is therefore not about ordering the system to stop watching. It is about letting the system try being in a focused, relaxed state, a little at a time, at a pace where it feels in control — a state in which a person may remain aware of their surroundings or drift deeper at intervals, and which is never a state where the therapist takes control of anyone’s mind. The person’s emotional safety is what we hold first, always. It is like turning the alarm’s sensitivity down one step at a time rather than removing the battery. The goal is a system that can still protect us when it needs to, but no longer sounds for every falling leaf — while developing additional ways of responding that fit present life.

Lasting change here is therefore not becoming someone who takes no care at all. It is the sensitivity of the system coming back into line with the world we actually live in today: watchful when watchfulness is called for, and genuinely able to rest when it is time to rest.

At NBRH (Neuro-Behavioral Repatterning & Hypnotherapy) we hold that our behavior and responses are not a permanent identity but patterns shaped by experience, which can gradually change given care and the right conditions. We use hypnotherapy as our principal way of working with these automatic circuits, in a space that is safe, private, and always respectful of each person’s own pace.

Hypervigilance often has roots reaching back into early experience. For the larger picture, we have written “Childhood Trauma” as a starting point. For a deeper understanding of the fight, flight, and freeze modes of the nervous system, “What Polyvagal Theory Is” follows that thread. And for anyone who finds their own vigilance expressed through pleasing everyone until they forget themselves, “The Fawn Response” connects that part of the picture. For those who would like to understand the basics before deciding anything, we have set out what hypnotherapy is and how it works.

What Hypervigilance Is: When the Body Watches for Danger Constantly and Forgets How to Rest