Clinical implications of circadian rhythmicity for nurses and patients

Recent research suggests that our biological rhythms are regulated by the light/dark cycles and regular time cues in our environment which synchronize our internal body clocks to a 24-hour cycle. Altering these external cues can cause an imbalance, in psychophysiological variables which adversely affect an individual's performance and health. This article considers the implications of desynchronized circadian rhythms on nurses working shifts in a continually changing temporal environment. It then discusses the impact this has on patients, their illness and their care. The authors suggest ways in which an understanding of the principles of circadian rhythms can be used to reduce the negative effects of hospitalization on patients, possibly even aiding their recovery.