Uncategorized
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Whalebones show damage from diving
Long-lived sperm whales typically develop bone damage not previously observed in marine mammals but found in some human divers who surface quickly or dive frequently.
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Air pollution trims fetal growth
Pregnant women who breathe polluted air deliver babies that are typically slightly smaller than those born to other mothers.
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Getting to gray hair’s roots
Scientists have unveiled a root cause for why hair goes gray.
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19506
This article attributes behaviors of earlier bedtime, longer sleeping, and earlier weaning to “greater personal independence” in children who sleep alone. It is equally possible that these behaviors are due to something else.
