As people age, their brains become less responsive to various time cues, such as light, meals, and social interactions, which are essential for maintaining the circadian rhythm. This diminished responsiveness results in older adults experiencing fatigue at different times compared to younger individuals and waking up earlier. Changes in vision, particularly due to cataracts, further exacerbate this issue by undermining the intensity of light stimulation necessary for the brain to track time accurately, leading to shifts in sleep patterns and overall circadian alignment.
"The wiring of the brain is likely not sensing...and responding to the inputs as well as it should because it's an aging brain..."
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