A study exploring the mechanisms behind why cognitive performance improves in response to exercise, has found that dopamine plays a key role. A study exploring the mechanisms behind why cognitive ...

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 ...

Whether you're taking a family vacation or a romantic cruise, a flight disruption can throw your plans out of whack. And so far, there've been quite a few this year: Between Jan. 23 and Jan. 26, more ...