Robert Groysman, MD

11/13/2025

Patients often ask about ni****ne and spike protein and there's been plenty of speculation.

This is why I often hear, "Does ni****ne attach to the ACE-2 receptor?

The answer is, NO.

Ni****ne doesn't bind, or attached to the ACE-2 receptor

This means ni****ne doesn't interact with the way in which spike protein attaches to a cell.

11/13/2025

11/13/2025

Patients ask this question daily: "Can spike protein damage my neurological system?"

Unfortunately, I believe the answer is, YES.

We know spike protein can cross the blood-brain barrier. We know it can trigger persistent immune activation. And we're learning it may contribute to the inflammatory cascade affecting nerve function in susceptible individuals.

This is part of the reason why we're seeing mitochondrial damage inside the cell.

Believe it or not, the second way COVID can cause havoc on your system is by disrupting the flora in your gut.

If you want to learn more, make sure you watch the entire video.

11/12/2025

Parosmia or loss of smell after COVID can feel frightening.

At first it's a mild inconvenience, but soon it leave you wondering if your body is permanently damaged.

The problem is you're experiencing what I call a 'brown out'.

If you think of your olfactory system like a breaker switch it will make more sense.

When you COVID virus circulates through the body it's flicking off different functions in the body including your taste and smell.

The problem is, when you recovery the switch is not turned all the way on so your olfactory system won't function properly.

This is why you continue to struggle with taste and smell.

11/11/2025

A most common questions we get about the stellate ganglion block is: "How much is this going to hurt?"

It's a fair concern, especially when you're considering a procedure that targets nerves located in your neck.

The good news is, the anticipation often feels worse than reality.

With proper technique and numbing medication, most patients describe mild pressure instead of what they perceive might be sharp pain.

The procedure itself takes just minutes. Some feel a warmth spreading through the face and arm as the block takes effect (that's the sympathetic nervous system resetting).

The temporary discomfort of the injection is brief.

For those dealing with long COVID, POTS, or persistent autonomic dysfunction, the question isn't really about mild discomfort, it's about whether you're addressing the underlying nervous system dysregulation keeping you stuck.

11/10/2025

I am a fellow long covid sufferer. I had been in remission for over 2 years, but every so often, my long covid reminds me that it is still there, like "hello old friend, I missed you". I had severe fatigue over the last few weeks and I am reminded that I can't push myself beyond my limit. I have restarted my own mitochondrial protocol and have seen quick gains. Why mitochondrial? Well because I did the same diagnostics I do for my patients. I don't have dysautonomia. I have some gut issues, mostly gas (sorry for those who are my patients lol), some histamine issues, and hormone imbalance already managed. I can't tell you how much easier it is to treat without dysautonomia or vagus nerve dysfunction. I don't just say do as as I say not as I do, I actually do exactly what I say to you guys.

11/09/2025

Loss of smell after COVID fundamentally alters how you experience the world.

And when smells return and your morning coffee starts smelling like gasoline or favorite foods trigger nausea, your daily quality of life takes an impact.

The question patients often ask when taste and smell fade: Will this cause permanent damage?

While the olfactory nerve epithelium (surrounding and supporting cells) can get damaged from COVID.

The good news is, this specific nerve is the fastest regenerating nerve in the body. This means that within a few weeks it can recover and get back to normal.

However just because it looks normal doesn't mean it functions normal.

This is when I get the call from someone not being able to taste or smell properly.

11/07/2025

"How long will I need to be monitored after my procedure?"

Post-procedure monitoring is a critical part of our process.

Before you leave the clinic, I will check in with you several times after your procedure.

We'll check your vital signs multiple times as symptoms will vary in an individual basis.

In this video, I cover exactly what we look for and what you can expect us after your procedure.

11/06/2025

If you noticed long COVID came with unexpected food reactions, flushing, itching, or symptoms that seem to appear out of nowhere, you're not imagining it.

Mast cell activation syndrome (MCAS) is emerging as a significant player in post-viral illness.

Mast cells are immune sentinels stationed throughout your body in your gut, skin, lungs, and brain. Their job is to release chemical mediators like histamine when they detect a threat. In long COVID, these cells often remain in a hyper activated state.

So what you're experiencing is NOT a food allergy in the traditional sense, but an immune dysregulation.

And this dysregulation is causing a cascade of seemingly unrelated symptoms: brain fog, fatigue, digestive distress, skin reactions, anxiety, temperature dysregulation, and pain that moves around the body.

The common thread is histamine and other mediators triggering inflammation across multiple systems.

11/05/2025

"I can't sleep, but I'm exhausted all the time."

It's one of the most frustrating contradictions patients describe, and it's far more than a sleep problem.

The insomnia that develops after COVID isn't simply stress or poor sleep hygiene.

What we're seeing is a disruption in the autonomic nervous system, or the control center regulating your sleep-wake cycles, body temperature, and the transition between rest and activity.

When this system gets stuck in a hypervigilant state, falling asleep becomes nearly impossible even when you're physically depleted.

This explains why typical sleep medications often don't work well for long COVID insomnia.

They sedate, but they don't restore the underlying regulatory balance your nervous system needs.

Understanding this mechanism matters because it shifts the recovery approach.