The Keiser Clinic

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Chelsea, MI
The Keiser Clinic

Board certified chiropractic neurologist and owner of The Keiser Clinic. Specializing in POTS, dysautonomia, concussion and neurological disorders.

Assistant professor of clinical neurology for the Carrick Institute of Graduate Studies.

11/25/2025

Your pupils aren’t stress meters — they’re strategy meters.

They’re constantly adjusting to match the task at hand, not just your emotional state.

Bright sun?

They tighten to sharpen your vision.

Dim lighting?

They widen so you can actually read the menu.

Focused work?

They fine-tune to help your brain pull in exactly the right amount of light.

And yes — that quick dilation when you’re startled? That’s your system widening the aperture so you can grab more visual information and orient fast.

When you stop thinking of pupils as “stressed vs. calm” and start thinking of them as precision optics, everything makes a lot more sense — and it helps us understand which pathways are involved when we measure them in the clinic.

Your pupils aren’t reacting randomly. They’re adapting intelligently.

➡️ Want to understand your nervous system with this level of nuance? Follow and join my livestream on YouTube every Thursday night at 8pm EST!

11/24/2025

Not all stress is created equal — and your body proves it every day.

Ever notice how your stomach twists itself into a knot during a conversation… but you can drop 200 feet on a roller coaster and feel totally different?

Same person.

Same “stress.”

Completely different outcomes.

That’s because stress isn’t one big thing — it’s context-dependent.

Social stress pulls heavily on cortical–hypothalamic circuits, which can shift gut motility fast.

But vestibular and proprioceptive stress (like a roller coaster) runs through totally different pathways and demands a totally different GI response.

When your body stops matching the context — when every stress feels the same, or the GI system reacts in ways that don’t fit the moment — that’s when we know something in the circuitry isn’t doing its job.

Understanding your stress pathways is how you get your function back.

👉 Want more breakdowns like this? Share this post and follow along for insights.

11/22/2025

Ever notice how stress sweat feels totally different than workout sweat?�

That’s because they come from completely different systems — and each one tells us something important about how your brain and body are responding to the world.

Workout sweat is all about temperature regulation — mostly water and salt to cool you down.

But stress sweat?�

That’s an emotional/social signaling system. It comes from different glands, carries proteins and lipids, and interacts with the bacteria on your skin to create that distinct smell.

Your body is literally sending a message.

From a clinical perspective, understanding where you sweat — armpits, neck, groin, chest, hands — and whether there’s odor can help us map how your autonomic and emotional systems are firing.

Cold hands?
Warm hands?
No smell?
Strong smell?�

It all points to different circuits.

Fascinating stuff — and incredibly useful when we’re trying to understand your stress physiology.

Want more deep-dive breakdowns like this? Follow along and share this post with someone who needs it.

11/20/2025

What started as a simple mirror trick in the early 90s has become one of the most powerful tools we have for helping people recover function after brain injury.

Ramachandran’s work with phantom limb pain showed us something groundbreaking: pain — and movement — are felt and processed in the brain, not just the body.

So when someone struggles to move a limb, walk well, or fully “command” one side of their body, we can use these same visual feedback techniques to wake up those neglected neural pathways.

Just this week, we had a young woman in her early 20s who couldn’t walk because of a neglect syndrome.

By using these brain-based tools, she was up, moving, and walking again.

It’s powerful, humbling, and incredibly encouraging for anyone navigating recovery.

Try this test at home — it’s fascinating to feel what your brain does.

And if you or someone you love is dealing with dysautonomia, concussion, or neglect syndromes, this could be an essential part of the path back.

�If you are trying to understand how your brain is really working — and what tools can help you recover — send a DM to see how we can help you!

11/20/2025

When you’re rebuilding your brain or your body, it’s easy to feel guilty for needing rest.

But here’s the truth: the growth isn’t happening during the reps — it’s happening in the recovery.�

Your nervous system, your strength, your capacity… all of it is built between the work sessions, especially when you sleep.

So if your body is asking for rest, honor it.

�If you checked the box for the day, you did the work.

Let yourself recover without shame.

A tired brain can still learn — and when you allow the recovery system to be strained (without overshooting), it gets stronger.

Chase the rest. Protect the sleep. That’s where the healing actually happens.

➡️ If you’re navigating rehab or recovery, follow for more neuro tips + weekly lives.

11/19/2025

When people claim functional neurology is “just Professor Carrick’s personal philosophy,” it tells me one thing: they haven’t actually looked at the research.�

Carrick is my mentor — and everything he teaches is rooted in published science anyone can access with a PubMed account.

Neuroplasticity, sensory integration, network-based rehab… none of this is novel.

It’s based on what Kendall & Schwartz won a Nobel Prize for.

The difference is implementation.

Here’s the truth:�Traditional research studies require uniform protocols, identical patients, and fixed interventions.

But real patients aren’t identical — especially those with complex neurological injuries.

So the gold standard for this kind of work isn’t placebo-controlled drug trials… it’s case series.

And when you actually analyze those cases, you see meaningful outcomes that conventional clinics rarely achieve.

If you’re searching for a different outcome, you can’t keep looking at the problem the same way.

If you want answers that go beyond the standard algorithm, this is where to start.

👉 Ready to understand YOUR brain through a different lens?

DM to learn more about what we do at the Keiser Clinic.

11/17/2025

So many students feel worse when they start college, grad school, or med school… but it’s not “just stress.”
 When you shift from an active lifestyle to hours of sitting, reading, and working at the same focal distance, your visual, cognitive, and postural systems all start stacking demands.

We recently saw a med-student whose blurry vision, double vision, palpitations, and dizziness weren’t coming from “mystery illness”… but from the posture they were in all day.
 Hunched over, head forward, shoulders collapsed — that position was literally restricting blood flow to the brain.

Once we improved spinal integrity, retrained posture, and strengthened the eye-movement systems needed to sustain that position, everything changed.

If you’re studying and suddenly feel worse, try a quick posture check:
 • Sit tall • Chin back • Shoulders gently rolled back
 If symptoms ease even a little, that might be your clue.

Your brain isn’t broken. Sometimes it’s just being choked by your posture.
 If you want help figuring out whether your symptoms are posture-related or neurologically driven, send me a DM or click the link in the bio to schedule an evaluation.

11/17/2025

Is it safe to do a tilt table test or a cardiac stress test when you’re being evaluated for a possible CSF leak?

Kayla asks a really great question here-
 Short answer: Usually, yes — and sometimes it’s even helpful.

When we’re talking about a potential CSF leak, the concern is pressure changes in the system that surrounds and protects the brain. Most suspected leaks are tiny “pinhole” leaks, which are notoriously hard to confirm — and tilt testing is actually one of the tools that helps us see how your system responds to positional changes without muscle contraction.

Cardiology may encourage you to continue the test, ENT may have no restrictions, and that’s because these tests are rarely contraindicated for suspected leaks.

They can even provide meaningful data about whether a leak is truly present.

Of course, always talk to the physicians who know your case, consider your personal comfort, and make decisions that feel safe for you.

This isn’t medical advice — just sharing perspective on a really common question people have in this situation.

Have questions? Join my livestream every Thursday night at 8pm EST on YouTube! 💪🏻

11/16/2025

✨ If your brain feels slower than it should be… there is a simple place to start.�

Reaction time is one of the most foundational — and overlooked — ways to train your brain to process faster.🧠⚡️

A simple reaction-time test (you can find these on tons of free apps) gives you a quick measure of how fast you’re responding to a visual cue.

Try it with both hands — you might be surprised to see one side slower than the other.

That asymmetry can give you insight into what’s happening in your brain and where to start training.

And the best part?

�Even though you’re “just tapping a button,” reaction-time training can drive changes across multiple brain systems: visual processing, sensory integration, motor control, and global processing speed. Small reps → big neurological shifts.

If you’ve been feeling stuck, sluggish, or like your brain just isn’t keeping up, this might be your first easy win.

👉 Want more simple, science-driven ways to retrain your brain?

Follow along and share this with someone who needs it.

11/15/2025

Feeling constantly fatigued isn’t always about having low energy — sometimes it’s about how efficiently your brain can use the energy you already have. 🧠⚡️

When the brain becomes inefficient, two things can happen:

�1️⃣ Lower horsepower. If the system isn’t firing efficiently, you simply don’t get as much usable output.

�2️⃣ Energy gets redirected inward. Just like when you’re sick and everything goes toward healing, the body may be channeling energy into repair, not outward expression.

Understanding which one is happening for you is key.

Are you pushing energy inward to heal?

Or is your system running inefficiently and in need of recalibration so you can get your spark back?

When you frame fatigue as an efficiency problem, you can finally target the right solution — rebuild, rewire, and restore your ability to live again. 🙌

👉 If you’re tired of being tired, send us a DM or click the link in the bio to see how we can help you!

11/14/2025

PROOF: The Brain Controls Autonomic Systems with Dr Keiser. 8:00 EST

11/13/2025

Neuroplasticity is the reason no system is ever truly “stuck.”�Your brain is designed to adapt, recalibrate, and reorganize itself based on the input you give it. That’s the magic — and the responsibility — of healing.

If you’re working through something tough right now, come back to the three pillars of creating change:�

1️⃣ Repetition — Are you showing up consistently, or taking days off when your system needs steady input?�

2️⃣ Precision — Quality matters. A sloppy rep just reinforces a sloppy pattern. Whatever you're retraining, execute it cleanly and use whatever tools you need to make it right.�

3️⃣ Tolerable dosing — Don’t go “all in” and blow up your system. Go just enough, consistently, and let your brain do what it's built to do: adapt.

Neuroplasticity is the pathway out — the mechanism that allows your brain to rebuild, recover, and relearn.

👇 COMMENT below with one thing you’re focusing on this week — and let’s revisit your win next week.

Address

400 N. Main Street Suite A
Chelsea, MI
48118

Telephone

+17347075105

Website

http://www.keiserclinic.com/

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