In Theory: Aging of Eyes Is Blamed in Circadian Rhythm Disturbances
New research supports a largely unrecognized culprit in circadian rhythm disturbances: the gradual yellowing of the lens and the narrowing of the pupil that come with age.
Source: http://feeds.nytimes.com/click.phdo?i=ebedb3238aa56ea932445bf238eb26d1
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