News
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Health & MedicineCh-ch-ch-changes
Epigenetic shifts continue throughout a person’s lifetime, and the overall pattern of these shifts appears similar within families.
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SpaceSafe from black holes
The Large Hadron Collider could generate black holes, but they would be too tiny and short-lived to do any harm and would be no more malevolent than the cosmic rays constantly bombarding Earth, two new reports find.
By Ron Cowen -
Health & MedicineHeel test
A simple, inexpensive ultrasound test of the heel might reveal whether a person is at risk of osteoporosis and should get more extensive tests.
By Nathan Seppa -