Veterans find relief from nightmares with NightWare and Apple Watch

Re:Veterans find relief from nightmares with NightWare and A... by anon400232 on Tuesday November 08, 2022 @09:52PM (#33527027)

I don't understand how ventilation could cause CO2 to get that imbalanced. Can you cite a source?

[ Parent | on HN ]

Re:Veterans find relief from nightmares with NightWare and A... by SXX on Wednesday November 09, 2022 @01:17AM (#33528059)

ELI5?

- Your normal city air CO2 is 350-500 PPM.

- Humans exhale CO2.

- In closed unventilated bedroom CO2 have nowhere to go.

- Air isn't being mixed when you sleep too.

- In few hours PPM can grow to 2000 or higher.

- Cheap air conditioners either dont have fresh air ventilation at all or dont have sufficient efficiency to compensate for two humans breathing.

You can google actual numbers elsewhere. Solution usually consist to sleeping with open windows or getting proper fresh air ventination system.

[ Parent | on HN ]