Business of LifeFrom the New York Times, Your Body is Younger than You Think.
The cells in our body are in a constant flux of change, growing, dying, renewing, so much so that the average age of all the cells in an adult's body may turn out to be as young as 7 to 10 years.
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About the only pieces of the body that last a lifetime, on present evidence, seem to be the neurons of the cerebral cortex, the inner lens cells of the eye and perhaps the muscle cells of the heart. The inner lens cells form in the embryo and then lapse into such inertness for the rest of their owner's lifetime that they dispense altogether with their nucleus and other cellular organelles.
Mind. Eye. Heart. What you think. What you see. What you feel.
All that makes us unique as individuals.
Isn't it curious that these are what we say we want to keep OPEN.
Open Mind. Eyes Opened. Open Heart. Keeping mind, eyes and heart open is how we stay fresh, flexible, vital and youthful.