Millions of Americans suffer from a condition known as sleep debt, the effect of not getting enough rest. Prolonged debt causes mental, emotional and physical fatigue. It is unclear why a lack of sleep causes irritability, however, theories are emerging that suggest if the body produces insufficient hormones during deep sleep it can have negative effects on the alertness and emotions of a person during the day.
…why I am married to the happiest, most even-tempered, good natured and cheerful guy around!!!