Latest Issue of Science News

4/18 Cover

Health

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artificial turf

Despite news reports about the potential harms of artificial turf, studies find synthetic fields have few health risks, although lead levels may be elevated in older fields.

STEPPING OUT Smartphone users can submit health and activity data for scientific research using a new series of apps that are designed for use with Apple’s ResearchKit. 

geographic tongue

TONGUE TWISTER  Cases of geographic tongue sometimes have spiral patterns (one shown). Other cases feature an archipelago of spots across the tongue.

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