Sports

Sports

Sleep cycles can affect an athlete's performance

If you watched Sunday's Super Bowl, you witnessed its improbable ending: Jermaine Kearse’s remarkable catch near the end; Seattle coach Pete Carroll's surprising play call at the goal line; and the interception that clinched the win for the New England Patriots. Would the outcome have been different had the game been played at a different time of day? We'll never know. But new research may provide an intriguing insight.

Sports

Why I have good reason to worry when I go to the World Cup in Brazil

It's part of the ritual of big sporting events. In the run-up, there's always a bit of worry about whether all the venues will be ready in time. But in Brazil, which is hosting this year's World Cup soccer tournament, that worry is more like an anxiety attack right now. And since I'm planning to travel to Brazil for the World Cup this summer, I'm feeling some of that anxiety too.