Sheldon Cohen

add one more piece to the puzzle.

There is a researcher called Sheldon, um, what was the name? Sheldon Cohen, a professor in the United States who a large part of his research and his career was about, okay, what are the factors that control whether or not you're gonna get a respiratory disease and how sick you're gonna be from it? That was...

He, he did a lot of research for decades on this.

So he w- what he took at the time, he took college students and tried to infect him with fluid from sick people, basically, okay?

And from the science, it's clear.

For example, Sheldon Cohen, who is a professor in the United States, spent his career demonstrating, trying to find what determines when a college student will get a respiratory condition and how sick they will be when they get it.

He did this for years.

He was actually infecting college students with fluids from sick people and trying to get them to be sick to see when they would be sick and when they wouldn't be sick and how sick they would be, okay? So he had hundreds of volunteers.

I wouldn't go too far in that direction because dirtiness doesn't make you sick.

In the sense that, I think that's overemphasized.

If you look at Sheldon Cohen's work, He was actually putting as dirty as you could be right into the throats of young people.

And the only ones that got sick are the ones that were stressed, okay? The others did get sick and were socially isolated.

Here's one that really surprised me.

At Carnegie Mellon, a team led by psychologist Sheldon Cohen interviewed four hundred healthy adults every evening for two weeks, asking about their conflicts, their support, and whether they'd been hugged that day.

Then, I love how committed these volunteers were.

They were deliberately exposed to a common cold and watched in quarantine.

In hospitals, it's called alarm fatigue, a monitor that beeps all night, and by three in the morning, nobody in the unit even flinches.

Sheldon Cohen's group showed that people under long-term stress had immune cells that had become resistant to cortisol signal.

The brake pedal was still there, but the cells had stopped responding to it, and inflammation was running with the brakes off.

So here's what I do.

And what we have been saying since the start is that respiratory ailments are extremely sensitive to stress and isolation.

And so this is from the work of Professor Sheldon Cohen in the US, who who a large part of his scientific research demonstrated this, that you're going to you're more likely to develop a respiratory condition even if you're young.

Like he was doing this with college students at the time, he was trying to infect them directly.

And he found that you're more likely to get infected or rather to develop the condition.