Before the Ventilator

Twelve flights in two months. Then, a few weeks after I landed, I got winded going up my own stairs. I have climbed Kilimanjaro. I had not had a cold in years. I drove myself to the emergency room thinking I was wasting their time.

Blood clots in both lungs, too many to count. By the time I got inside from the garage, my blood oxygen was at 78. Nine days in the hospital, four of them on high-flow oxygen, the highest level of respiratory oxygen life support they had for me. I was tired and winded on my own stairs, but I had no pain and did not recognize what was happening.

Months later, follow-up testing found that I carry one copy of Factor V Leiden, an inherited clotting condition I had never heard of, that produces no symptoms on its own, and that I had carried through fifty-six countries and up a mountain without knowing.

I sat down with Aaron Faulkner and told the whole thing once, on camera.

Factor V Leiden is named after a town. Leiden sits in the western Netherlands, and its university, founded in 1575, is the oldest in the country. In 1994, Rogier Bertina and his colleagues at the Leiden University Hospital published a paper in Nature showing that the blood of people who did not respond to their body's own clot-off switch carried one changed letter in the factor V gene. One letter, out of thousands. The condition took the town's name, the way a lot of medical findings do.

The V is only its place in the numbering of the clotting factors, the fifth one identified. The Leiden part is the town. Together they are a record of the place someone finally looked hard enough to see the thing.

What that group measured in the Dutch population was a carrier rate of about two percent, at least ten times higher than every other inherited clotting risk known at the time. It is still the most common inherited clotting condition among people of European descent, and in some places it runs far higher. Studies in Greek Cypriot and other Eastern Mediterranean populations have found more than one carrier in ten. Across Europe the pattern is uneven, high across a broad band and low in pockets. That is what a single old change in one person looks like on a map.

Some people are born with a change in their genes that makes their blood clot more easily than it should. These are called inherited clotting conditions, or thrombophilias. The most common is Factor V Leiden, a single misspelling in one gene that keeps your blood from fully switching off clotting once it starts. Others include the prothrombin gene mutation and deficiencies in the body's natural anticoagulants, protein C, protein S, and antithrombin.

Here is what they have in common. None of them cause symptoms on their own. You cannot feel them. They do not show up on a routine physical. Most people who carry one find out the way I did, after a clot, or never find out at all because the clot was blamed on something else.

They are also not spread evenly. Factor V Leiden is found in roughly one in twenty people of European descent, about one in fifty Hispanic Americans, about one in a hundred Black Americans, and fewer than one in two hundred Asian Americans. It traces back to a single ancestor tens of thousands of years ago, which is why it follows the map of where that person's descendants went. In a country where most of us carry more than one ancestral line, a condition labeled as belonging to one group can be sitting quietly in another. I am a Black man who has spent eight years tracing my roots to Africa. Mine came through the part of my family history I never once looked at for a clot.

Look at me and you would not guess that I carry a genetic mutation with European origins. My DNA reads about twenty-five percent European ancestry, and that comes from both sides, my mother's and my father's. This is not a number I am guessing at, and it is not a mystery I am still trying to solve. It is genealogy. I know who these ancestors are and I know about their existence.

And ironically, not all of it came out of slavery. Some of it may have. I had great-grandmothers with direct European ancestry, and the lines on both sides carry names. I learned a lot about those people, and I did not expect any of it to explain a clot.

That is the part I want you to sit with. Factor V Leiden is described as a condition of European descent, and here it is, sitting in a Black man who has spent eight years tracing his roots to Africa. The label on a condition tells you where a change first showed up a long time ago. It does not describe the person standing in front of you. Ancestry is not a single line, and a mutation does not check which box you fill in.

Most strokes are clots. About 87 percent of them happen when a vessel carrying blood to the brain is blocked. And a clot does not always form there. About one in four people has a small opening between the upper chambers of the heart that never closed, and most of them never find out. In rare cases a clot that starts in a leg vein crosses through that opening, leaves the vein side, and travels to the brain.

I am not going to oversell that. Research on Factor V Leiden and stroke points in the same direction without landing on one answer, and a stroke in your family does not mean you carry a clotting condition. My point is smaller and it is still the point: I read my own family history as clean because I was only looking for clots. When you ask the oldest relative you have what happened, ask about clots and ask about strokes.

The test is a simple blood draw ordered by a doctor, called a thrombophilia panel. A consumer ancestry kit is not a diagnosis. Testing is worth asking for even when nothing in your family looks like a clotting problem, because that is exactly what mine looked like. It pays off most where the history is loud: you or a close relative had a clot, a clot with no obvious cause, a clot at a young age, or repeated pregnancy loss.

And if you carry it, tell your children. I told mine to go get checked. It did not start with you and it does not end with you. Each child of a carrier has a fifty percent chance of inheriting it.

Clotting is partly what your genes say and partly what your body is doing at the moment. Blood that keeps moving stays where it should. Blood that sits begins the problem. That is why the same long flight is ordinary for one person and dangerous for another.

The calf muscle is the engine. Every time you stand, walk, or raise your heels, it squeezes the deep veins in your leg and pushes blood back up toward your heart. Sit still for hours and that pump does not run. This is why someone who trains and someone who does not are not starting from the same place, and why extra movement is never wasted.

And it is not only the calf. The leg is the most common place a clot starts, but it is not the only place. Clots can form in the hip and the pelvis, and they can form in the abdomen. Anywhere blood slows down and sits, the same problem can begin.

So the fix is not complicated. Move often. Move on purpose. Build the calves and keep using them. Hydrate before you are thirsty, and before a journey, not just during it. None of this is a treatment and none of it replaces a doctor. It is the part that is entirely in your hands.

I started Jay Cameron's Passport to Freedom to take people around the world, because I know what exposure did for me. I was living in a bubble, and stepping outside it changed how I thought, how I spoke, and what I believed was possible.

After January 2026 it became something more. I am still going to take people around the world. Now I am also going to show people how to live. Not someday. Now. Here is where it starts.