Uncategorized
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Sleep debt exacts deceptive cost
Moderate but sustained sleep deficits undermine alertness and other mental faculties to a potentially dangerous extent, although people who experience this level of sleep loss usually don't feel particularly drowsy.
- Health & Medicine
Passive smoking may foster kids’ cavities
Young children exposed to tobacco smoke face a greatly elevated risk of developing cavities in their baby teeth.
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Human RNA genes counted up
People possess about 250 genes that encode short RNA strands rather than DNA.
- Planetary Science
Spacecraft reveal Mars’ molten heart
Tracking the precise motion of a spacecraft orbiting Mars, planetary scientists have deduced that the core of the Red Planet is at least partially liquid.
