The aging eye filters out blue light, affecting circadian rhythm and health in older adults.
For decades, scientists have looked for explanations as to why certain conditions occur with age, among themmemory loss, slower reaction time, insomnia and even depression. They have scrupulously investigated such suspects as high cholesterol, obesity, heart disease and an inactive lifestyle.
Now a fascinating body of research supports a largely unrecognized culprit: the aging of the eye.
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