After a finite number of divisions, cells simply give up. As each round of replication trims their telomeres—the protective ...

In several disease conditions, including infections and cancers, innate immune activation and nutrient scarcity occur together. A study from St. Jude Children's Research Hospital, published in Cell, ...

When two cells "talk" to each other, they often do so through tiny channels called electrical synapses. Unlike chemical ...

A high-speed “zap-and-freeze” method is giving scientists their clearest view yet of how brain cells send messages. By ...

Some boxwoods turn yellow or bronze in winter as a normal seasonal change, especially in certain types, and usually green up ...