Why do antidepressants take so long to work?

An episode of major depression can be crippling, impairing the ability to sleep, work, or eat. In severe cases, the mood disorder can lead to suicide. But the drugs available to treat depression, which can affect one in six ...

Discovery of the missing link in evolution of bioluminescence

With bioluminescence—the process that makes fireflies glow—now a mainstay in medical research, scientists are reporting discovery of a "missing link" of its evolution, which represents one of the deepest mysteries about bioluminescence. ...

Could coffee offer protection from catching COVID-19?

Could consuming a cup of coffee be an effective way to protect yourself against infection with coronavirus? What has not yet been proven in practice is at least very plausible according to biochemical research.

Lab discovers small 'Cain-and-Abel' molecule

A new bacterial molecule with the unsavory tendency to track down and kill others of its own kind has been discovered in the human microbiome by researchers at Princeton's Department of Chemistry. Named Streptosactin, it ...

Scientists reveal how first cells could have formed on Earth

Roughly 4 billion years ago, Earth was developing conditions suitable for life. Origin-of-life scientists often wonder if the type of chemistry found on the early Earth was similar to what life requires today. They know that ...

A hydrogel that can stop bleeding from an artery

A team of researchers affiliated with several institutions in China has developed a hydrogel that can stop bleeding from a punctured artery. In their paper published in the journal Nature Communications, the group describes ...

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