Hello, and welcome to another episode of Dr. Mercola's cellular wisdom, where we like to dig deep into the hidden gears running our bodies.

I'm Ethan Foster, your friendly neighborhood observer of odd human habits, and I'm joined by the one and only Alara Sky.

That's right, Ethan. I'm Alara Sky, the woman who can't pass up a chance to poke holes in unhealthy conventions.

I'm here to talk about everything from T cells to triggers,

and I fully intend to amuse myself and maybe you too in the process. Today's topic, smoking,

specifically how it hampers your immune function. Now, some people say, so what if I smoke? I've got

cough drops, I've got tissues, I'm fine, but apparently that's like bringing a plastic spoon to a sword

fight. Indeed.

People often overlook the fact that smoking doesn't just give your lungs that charming,

scratchy soundtrack. Cigarette smoke can hijack specialized immune cells, turning your respiratory

system into a congested battlefield. And who wants to star in an epic battle scene as the

underdog with no backup? I mean, not me. Enough daily conflicts in the world. Let's jump into the science. There are

thousands of chemicals in cigarette smoke, and they combine to form a toxic club out on

the lung dance floor, messing up all your immune system's favorite tunes.

Exactly. These chemicals weaken your body's immune cells, especially some that you'd want

on your side when infection strikes.

One type under threat is called M-A-I-T cells, short for mucosal-associated invariant T-cells.

Picture them as your lungs' personal bodyguards.

They show up, check the IDs of bacteria and viruses, and if something looks shady, they bounce them right out.

But throw in cigarette smoke, and those bodyguards get tricked by fake IDs.

They can't see the real threats anymore.

It's like if every villain had a pass that said,

...