Dr. Andy Galpin

If you are particularly sensitive to CO2 as well, which many people are, then that kicks off that entire cascade.

You get pushed way more into sympathetic drive.

And again, the biggest issue is you will see a subjective and objective massive change in fatigue and energy and cognitive function the next day.

People rarely talk about CO2 concentrations in your room.

This is a classic case of, like, I do all the things.

I've listened to Matt Walker.

Like, I do all of it, and I still suck at sleep.

You start thinking about what's going on in your physical environment.

900 parts per million.

Yep.

You will see typically 1,200, 1,300.

In people, like really consistently, that's not that bad.

Most of the problems happen at like 2,000, 2,500, 3,000.

So if you're freaking out, you're like, oh my God, Annie said 900 and I'm at 1,000.

Don't worry about it.

Okay, you have tons of combinations of things you can do here on both ends of the spectrum.

Number one, you can actually just become more resilient to CO2.

So if you work on your CO2 tolerance, this will help, especially if you're CO2 intolerant.

Outside of that, lower the amount in the room.

If you can open up windows at night, that's great.