Dhru Purohit

Absolutely.

And we know that when people have things like sleep apnea, which disturbs sleep,

high quality deep sleep in particular, they have a higher risk of Alzheimer's disease, right?

Going back to what you were talking about with the endothelium, we've done a number of podcasts on this topic.

We've had my own personal cardiologist on here.

I don't know if you've ever connected with him, Dr. Michael Twyman.

Really great guys.

You guys are like super complimentary with each other.

It's based in St.

Louis.

Really good dude.

Former Marine, sorry, former Navy doctor.

Mm-hmm.

And that went into private practice and everything.

And one of the things that he talked about with sleep is that just like you were talking about the analogy of our arteries and our endothelium and it getting damaged during the day.

Well, we all have damage and it's not just from diet.

We know that air pollution, especially in a city like Los Angeles, probably compared to where you live, air pollution comes in our body.

And it can cause these little damages, these PM 2.5, parts per million 2.5.

And that can damage our endothelium.

And then that damage over time that doesn't get repaired because we don't have great sleep or great recovery...