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 ...
In Guatemala’s presidential runoff in August 2023, political outsider Bernardo Arévalo de León won 58 percent of the vote, beating establishment candidate and former First Lady Sandra Torres. The ...
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