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Health & MedicinePreventive drugs protect children
Preventive treatment with inexpensive drugs decreases rainy-season cases of malaria in Senegal.
By Nathan Seppa -
EarthSome temblors probably were triggered by tides
Detailed analyses of large earthquakes suggest that some of them may have been triggered by strong tides in Earth's crust.
By Sid Perkins -
Clock genes regulate blood sugar
Circadian-clock genes may play an important role in governing the body's metabolism of dietary sugars and fats.
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EarthInhaled particles damage vascular lining
Airborne soot and other pollutant particles can impair the ability of tiny vessels in the body to properly regulate blood flow, an animal study finds.