A standing appointment that with your favourite team. You find yourself there, in front of the TV with a lump in your throat, you curse, hope and get excited sure that those on the other side of the screen can hear your voice. But we must dispel a myth: if our favorite team loses the game we don't take it out on coach, athletic performance, weather, accidents or even on the poor referee.
The fault could be air pollution and presence of fine particles. The disconcerting hypothesis comes from the researchers of Bonn's Institute for the Study of Labour that have examined athletic performance between 1999 and 2011 in the Bundesliga and have founded a correlation between the physical form of champions (measured with the number of ball passages, productivity indicator because connected to the speed of the game and the success of the team) and smog outside the stadium.
By analyzing nearly 3.000 games played in 32 different stadiums from 1,771 players to 29 teams, the experts concluded that the pollution have a negative impact on the players' productivity: the performance decrease moderately when there are between 20 and 50 micrograms of particulate per cubic metre of air and consistently above 50 micrograms, a level beyond which the performance can drop down to 16%.