A study from the University of California in Irvine reveals the fact, that a genetic deficiency causes people to drive wores than others. The gen is called BDNF (Brain-Derived Neurotrophic Factor). The scientists asks 29 people to drive in a driving simulator. The result: Those who hold the gen drive constantly 20 percent worse than people without the gen. It might count for racing games too. Don't get that street record in Burnout Paradise? Here's your excuse.