It’s an age-old question. But a few recent studies have brought us closer to an answer. By Alexander Nazaryan What is the best time of day to exercise? It’s a straightforward question with a ...
Usain Bolt smashed the 100-metre sprint record at the 2009 World Championships in Athletics in Berlin in a floodlit stadium under an inky night sky. This article is part of a series on fitness that ...
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