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This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

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Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting

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Aleyrodomorpha

anacardates

Anxious B.

arteriae mesenterica superior

Aulneau Pen.

autocriticism

be borne in on someone

burner zone wall heat release rate

cellularity

chieftaincies

chlorobutadiene- acrylonitrile rubber