The pursuit of more energy efficient homes and the appeal of a controlled temperature is effectively transforming American homes into enclosed vessels in which harmful substances, including CO₂, buildup over time.

The sick building syndrome is a term used to describe a sudden onset of acute symptoms that seem to appear when spending time inside a specific building due to poor air quality; The same phenomena could be responsible for recurring or chronic conditions that you experience at home.

The sick building syndrome may now be the sick home syndrome.