Aging ScienceAugust 28, 2026
Digital Reaction Time and Healthy Aging: What Milliseconds Reveal
Digital reaction-time tests are easy to repeat, but the result depends on attention, hardware, practice, and health—not age alone.
8 min readHow Old Are You Really?
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Aging ScienceAugust 28, 2026
Pupillary Light Reflex and Healthy Aging: What the Eyes Reveal
The pupil's response to light changes with age, medication, and eye health. Learn what pupillometry measures and why it is not a diagnosis.
8 min read
Aging ScienceAugust 28, 2026
Skin Autofluorescence and Aging: What the Glow Can Show
Skin autofluorescence estimates fluorescent glycation products, but age, metabolism, skin properties, and device limits all shape the result.
8 min read
Aging ScienceAugust 27, 2026
Microvascular Endothelial Function and Healthy Aging: The Small-Vessel View
Microvascular endothelial function shapes oxygen delivery throughout the body. Learn how small-vessel health changes with age and how researchers assess it.
9 min read
Aging ScienceAugust 27, 2026
Muscle Echo Intensity and Healthy Aging: What Ultrasound Can Reveal
Muscle echo intensity may reflect changes in muscle composition, but it is not a diagnosis. Learn what ultrasound shows and how to interpret the evidence.
8 min read
Aging ScienceAugust 27, 2026
Sleep Spindles, Memory, and Brain Aging: What Nighttime Rhythms Reveal
Sleep spindles help organize memory during non-REM sleep. Learn how these brain rhythms change with age and what the evidence can—and cannot—show.
9 min readExplore Topics
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