News
- Health & Medicine
Twice bitten
Repeat episodes of Lyme disease are more likely caused by a second tick bite rather than by a return of the original illness.
- Health & Medicine
Ulcer bug may prevent asthma
Children whose stomachs carry the bacterium Helicobacter pylori are at lower risk for asthma than children who don't have the bug.
- Humans
Math clubs get national sponsor
A math group is offering all U.S. middle schools free materials to set up clubs aimed at making math fun.
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Stored blood loses some of its punch
Loss of nitric oxide from donated blood that's been stored for as little as 3 hours could impair its ability to flow through a recipient's blood vessels.
