Central Sleep Apnea

Famous quotes containing the words central and/or sleep:

“Parental attitudes have greater correlation with pupil achievement than material home circumstances or variations in school and classroom organization, instructional materials, and particular teaching practices.”
—Children and Their Primary Schools, vol. 1, ch. 3, Central Advisory Council for Education, London (1967)

“Only when one cannot sleep does one know how long the night is.”
—Chinese proverb.