Immune function 101: Sleep quality and viral infections

Sleep well, be well?

Sleep quality is an important predictor of efficient immunity.

In this study, the researchers measured sleep duration, sleep efficiency and perceived quality of rest for 14 days, then exposed the test group to a virus.Poorer sleep efficiency and shorter sleep duration prior to viral exposure were associated with lower resistance to illness. The chance of exposure developing into a cold was associated with both sleep efficiency and sleep duration in a graded manner; less sleep, or more fragmented sleep increased the likelihood of developing a cold. The perception of being well rested was not associated with developing a cold.