Breathing Through the Night: How Your Bedroom's Air Composition During Sleep Is Quietly Reshaping Your Metabolism and Recovery
The air you breathe during sleep is not a passive backdrop to recovery — it is an active variable that influences circadian hormone release, cellular detoxification, and metabolic regulation throughout the night. For shift workers and anyone sleeping in poorly ventilated spaces, suboptimal bedroom air composition may be undermining the biological repair processes that sleep exists to enable. The science of what happens when CO2 accumulates, pollutants persist, and humidity drifts out of range du