If the first word that comes to mind when you hear “soccer” is hooligans, you’re probably not alone. Soccer has some of the most rabid fans on the planet and their might just be some biochemical rational for it.  A team of filmmakers are on the ground in Rio de Janeiro documenting the science behind the games, including an exoskeletal kick-off, the genetics of competition, and even the biochemistry of die-hard spectators.

Imagine Science Films’ new series, “Field Work: World Cup,” puts these and other cinematic explorations on display. Each of the six short films in the series will debut in the coming weeks. To start things off, there is “Amor.” Here’s how Imagine Science Films describes the flick:

Loyal soccer enthusiasts will defend their team to the end; even in the threat of potential injury. What is it that inspires this epic feeling of diehard love and loyalty? As the stadium pulsates with excitement, fan behavior is highly influenced by the environment. In a large group, the individual disappears only to be encompassed into something much larger. But is this amor? Amor gets to the heart of these questions with local molecular biologist Dr. Franklin Rumjanek, from the Center of Health Sciences at the Federal University of Rio de Janeiro.

Take a look at the video. Enjoy!

The Biochemistry Of Crazy Soccer Fans [Video] | Popular Science.