They have been promoted as a remedy for anxiety and sleeplessness, with celebrities and influencers swearing by their calming ...

The roots of Russia's invasion of Ukraine go back decades and run deep. The current conflict is more than one country fighting to take over another; it is — in the words of one U.S. official — a shift ...

We show that, compared with surgeon predictions and existing risk-prediction tools, our machine-learning model can enhance ...