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Biomedical engineer David Camarillo reveals how much scientists still don’t know about concussion and the brain.

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‘The Sports Gene’ author David Epstein picks 5 books and articles about the science of athletic performance.

Neymar on the field in 2014

Germany’s 7-1 victory over host country Brazil in the World Cup semi-finals this week followed the injury of Brazilian soccer star Neymar da Silva Santos Júnior, whose collision with Colombian player Juan Camilo Zúñiga during the quarter-final game last Friday led to a hail of racist epithets aimed at Zúñiga. Ready to go beyond the headlines? 5 primary sources worth reading next.

A group of Brazilian hackers affiliated with Anonymous plans to join the escalating protests leading up to the World Cup this week. As they criticize government spending and inequality, they also shine light on the power of online protests.

What will sports look like in the future? | ideas.ted.com

How will science and technology change athletics, the limits of the human body and the shape of competition? Writer David Epstein, NFL pro Chris Kluwe and ESPN’s Cynthia Bir tackle these questions and more.