When Your Brain and Your Body Both Can't Sit Still: The ADHD and Hypermobility Connection

If you're someone living with hypermobile Ehlers-Danlos Syndrome (hEDS) or hypermobility spectrum disorder (HSD) and ADHD, there's a good chance you've felt like your brain and your body are constantly butting heads. These two conditions have a sneaky way of overlapping, and sometimes until someone else points it out, it can be really hard to see. Once you understand that they often co-exist, and why, it can bring some ease into how you manage both.  

First — How Common Is It To Have Both ADHD and HSD/hEDS? 

Research shows that people with hEDS/HSD have significantly higher rates of ADHD compared to the general population. A large population based study out of Sweden showed that people with EDS were 5.6 times more likely to have an ADHD diagnosis than those without EDS. This shows that the co-occurrence of these two conditions is not just a coincidence. If you've got both, you're certainly not alone! 

The "ADHD of the Body" Analogy

Here's a helpful way to think about it: 

With ADHD the nervous system and brain are constantly seeking input, stimulation, and feedback to feel organized and calm. It struggles to filter, to settle, and to feel enough. 

Hypermobility, in many ways, is very similar, just in the body.

When your joints are hypermobile, the mechanoreceptors (the small sensors in your connective tissue that tell your brain where your body is in space) don't fire as reliably or accurately. Your proprioceptive system (which gives your body feedback on your current position) is essentially working with a spotty signal. So your body is constantly searching for input to feel stable and grounded. This shows up as:

• Constant shifting, fidgeting, or repositioning throughout the day

• Leaning into walls, counters, or furniture without even realizing it

• Crossing your legs, sitting with one leg up, wrapping your ankles around chair legs

• Seeking out pressure or compression for comfort (weighted blankets)

• Cracking or "clicking" joints to get sensory feedback

That restlessness isn't just a quirk — it's your body trying to compensate for unreliable joint feedback. 

The Hyperfocus Problem

Hyperfocus is really where ADHD and hypermobility can start working against each other.

One of the hallmarks of ADHD is hyperfocus — that state where you are so locked in on something that the rest of the world disappears. Sometimes for hours. And when that happens, your brain essentially stops checking in with your body.

For people without hypermobility, that's mostly fine. For someone with hypermobility? It can mean:

• Sitting curled in a bizarre position for two hours without noticing

• Slouching deeply into a couch or chair with no joint support

• Holding your neck out and at an odd angle while staring at a screen

• Crossing your legs or tucking your feet until they go numb — and you don't notice until it's too late

The problem is that hypermobile joints don't always hurt in the moment the way you'd expect. You might not feel that your shoulder has crept up by your ear, or that you've been in end-range position of a joint for a prolonged period. The pain, stiffness, or flare often comes later — sometimes hours later or the next day — which makes it really hard to connect cause and effect.

The word for this is interoceptive disconnect. It describes the difficulty sensing what's happening inside your own body in real time. And here's the kicker — both ADHD and HSD/hEDS are independently associated with interoceptive difficulties. When you have both, this challenge is compounded.

The Science Behind the Overlap

Why do these two conditions show up together so often? There are a few key mechanisms at play:

• Connective tissue and the nervous system are deeply linked. Collagen is found throughout the entire body — including the nervous system — so when connective tissue behaves differently (like it does in HSD/hEDS)  it can affect how nerves and sensory receptors function too.

• Norepinephrine dysregulation. Norepinephrine is a key player in both attention and in things like muscle tone, joint stability, and vascular stability — systems that are also dysregulated in HSD/hEDS and dysautonomia.

• Shared interoceptive pathways. Both ADHD and hEDS are linked to reduced interoceptive awareness — meaning the brain has a harder time reading the body's internal signals — and when you have both, that disconnect is compounded.

• Possible genetic links. There's growing evidence of shared genetic pathways between connective tissue differences and neurodevelopmental conditions, which may help explain why these two things cluster together so often in the same person — and in the same families.

What This Means for You

Understanding the overlap is both interesting and practically helpful. Here’s what you can do to help manage both: 

• Outsmart it. Start to collect information on your ADHD and hypermobility patterns. For example, bring awareness to certain tasks where you might be more prone to hyperfocus or disconnecting from your body (deep cleaning the house, scrolling on social media, the latest Netflix docu series, or your newest hobby). Also start to collect info on what spots you are more prone to getting into positions that are not so friendly for hypermobility (the couch, your chair at work, your bed, etc.). Identifying these patterns and areas that you might be more

  prone to having ADHD/Hypermobility conflict in, can shine light in areas that you can further address to help improve symptoms. 

• Set body check-in reminders. If you are about to start on one of your hyperfocus tasks, or get into one of the not so friendly hypermobility sitting areas, a simple phone alarm every 20-30 minutes to reposition, stretch, and do a little walking lap around your house can prevent a lot of next-day pain. Also use this break time to check in with your body to see if you have potentially been missing hunger cues or thirst cues. Keeping hydrated and maintaining steady blood sugar levels can help with managing ADHD as well. 

• Reframe how you approach tasks. With doing positional breaks every 20-30 minutes, it will naturally take you longer to complete tasks and might seem very interruptive. This can seem frustrating at first, however in the long run it can save time, as you will have less tendency for next-day pain. Therefore time and energy will be saved as you break the pain cycle. 

• Lean into supportive proprioceptive tools intentionally. Supportive seating options could include a lumbar roll and arm rests. Compression garments around the pelvis and waist area can be helpful. Braces for stability can help with both proprioceptive feedback and postural stability. A weighted blanket draped over your lap can also help with a sense of feeling grounded and decrease your likelihood of having to rely on end-range joint positions. Also, finding the right fidget tool is a great support as well.    

• Be patient with yourself about body awareness. It can be easy to feel like the difficulty with your body awareness is laziness or carelessness. That is certainly not the case. Your brain genuinely receives less reliable feedback from your body than most people do. Giving yourself grace during this process of trying to improve body awareness is essential. 

• Talk to your providers about both conditions together, not in separate silos. How you manage ADHD can impact your physical symptoms, and vice versa.

If you are living with both ADHD and HSD/hEDS, it can feel immensely challenging.  But naming it, understanding it, and learning what working with your body looks like (and feels like), can make a real difference.

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