NYU dental professor discovers biological clock

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A 3-D microscopic view of bone from a human femur showing incremental growth lines corresponding to a biological rhythm that repeats itself every eight days. The black hole at the top is a blood vessel canal. Credit: Dr. Tim Bromage
A 3-D microscopic view of bone from a human femur showing incremental growth lines corresponding to a biological rhythm that repeats itself every eight days. The black hole at the top is a blood vessel canal. Credit: Dr. Tim Bromage

Why do rats live faster and die younger than humans? A newly discovered biological clock provides tantalizing clues.


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