A Moment of Science
Ever wonder why it takes so long for a scratch on the elbow to heal? After all, it takes just minutes for a scratch on the eyeball to heal.
Readers of detective fiction knows one thing fingerprints are good for, their unique patterns. Why have we evolved such convoluted fingertips and why so useful?
What's really happening to your skin when it's dry? How can we prevent this itchy, flaky and scaly skin?
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