

Reading and processing text requires more sustained effort for someone with dyslexia than for most people. That additional effort is cognitive, but it does not stay contained to the brain. It travels into the body in ways that are real, measurable, and often unrecognised, showing up as muscle tension, postural strain, fatigue, and discomfort that many people with dyslexia experience regularly without connecting it to their reading. This article looks at how that pathway works, what it does to the body at a desk and beyond, and some practical adjustments that can make a meaningful difference.
When the brain is working hard, the body reflects that effort physically. This is not unique to dyslexia. Anyone who has spent a long day on demanding cognitive tasks will recognise the physical tiredness and tension that follows. For someone with dyslexia, however, that cognitive load is present during tasks that others find relatively automatic, such as reading an email, scanning a document, or following text on a screen. The effort is sustained, frequent, and often invisible to those around them.
The physical expression of that effort tends to concentrate in the areas of the body most directly involved in the reading process. The muscles of the face, jaw, and forehead tighten during concentrated reading. The neck and shoulders brace as attention narrows onto the text. The breath becomes shallower, reducing the natural movement of the ribcage and upper back. The body, in short, moves into a state of sustained tension that it was not designed to maintain for the length of a working day.
For many people with dyslexia this physical tension has been a background feature of desk work for so long that it feels normal. Recognising it as something worth addressing, rather than an inevitable consequence of concentration, is the first and most useful step.
Alongside the general tension that sustained cognitive effort produces, people with dyslexia often develop specific compensatory postural habits in response to the demands of reading. These habits are entirely understandable adaptations to a visual and cognitive task that requires more effort than usual, but over time they place particular parts of the body under disproportionate load.
Leaning closer to the screen is one of the most common. When text is difficult to process, bringing the eyes closer feels like it should help, and sometimes it does in the short term. The MSK consequence is a forward head position that significantly increases the load on the muscles at the back of the neck and across the tops of the shoulders, as covered in the screen fatigue article earlier in this series.
Tilting or turning the head to approach text from a particular angle is another. Some people with dyslexia find that viewing text at a slight angle makes it easier to process. If that angle involves a consistent head tilt or rotation, the muscles on one side of the neck and upper back carry more load than the other, producing the kind of asymmetric tension that accumulates over time.
Tracking text with a finger or cursor, while a genuinely helpful reading strategy, can encourage the body to follow the movement of the hand with the head and upper body, adding a repetitive element to the postural load that builds through a long reading session.
Holding the breath or breathing very shallowly during concentrated reading is also common. The diaphragm and ribcage become relatively still, reducing the natural movement of the thoracic spine and contributing to the feeling of tightness and compression across the mid and upper back that many people notice after a demanding desk session.
The fatigue that follows sustained reading effort with dyslexia is real and physical as well as cognitive. When the brain has been working hard for an extended period, the postural muscles that support sitting upright lose their engagement more quickly than they would after less demanding work. The result is the familiar end-of-day slump, shoulders rounding forward, the head drifting down towards the screen, the lower back losing its support against the chair, which then adds a further layer of MSK load on top of the tension that has already been building.
This fatigue tends to arrive earlier in the day for someone with dyslexia than for colleagues doing similar amounts of desk work, because the cognitive demand of reading-heavy tasks is higher. Recognising that earlier fatigue is a legitimate physiological response rather than a personal failing makes it easier to respond to it sensibly, by building in rest and movement breaks before the fatigue becomes significant rather than pushing through until the body has little left.
Many of the adjustments that reduce the physical load of reading with dyslexia work by reducing the cognitive effort of the reading itself, which then reduces the physical tension that follows from it.
Font size and type make a genuine difference. Larger text reduces the need to lean towards the screen. Fonts that are designed with dyslexia in mind, or simply clean and well-spaced sans-serif fonts, reduce the visual effort required to distinguish letters and words. Increasing line spacing and reducing the amount of text visible on the screen at one time can also help by reducing the sense of visual crowding that makes text harder to process.
Background colour is worth experimenting with. Many people with dyslexia find that reading black text on a white background is more demanding than reading on a softer background colour such as a warm cream, pale yellow, or light blue. Most devices and applications allow background colour to be adjusted, and finding a combination that reduces visual effort also reduces the physical tension that sustained effort produces.
Text to speech tools allow the eyes and the muscles involved in visual reading to rest while information is still being absorbed. Using these tools for longer documents, emails, or reports reduces the total amount of sustained visual reading required through the day and gives the neck, jaw, and forehead muscles a meaningful period of lower demand.
Screen position adjustments that allow a more neutral head position, as covered in earlier articles in this series, apply equally here. Reducing the need for a forward head position or a consistent head tilt through better screen placement reduces the MSK load regardless of the underlying reason for those compensatory habits.
The physical consequences of reading effort with dyslexia are not limited to desk time. Any situation that involves sustained reading or text processing, whether that is reading on a phone, navigating written instructions, or following subtitles, produces a similar physical response in the body.
Being aware of the postural habits that emerge during these moments, and taking brief breaks from sustained reading in daily life as well as at work, reduces the cumulative load on the neck, jaw, and upper back across the whole day rather than just the working hours.
Your VIDA programme includes stretches and exercises for the neck and upper back that can help manage the tension that builds from sustained compensatory posture. Following the guided videos at your own pace, particularly at the end of a demanding reading day, supports the muscles in releasing what they have been holding and recovering for the next day.