For the same reasons as above, this sexual dimorphism and age drop-off supports our hypothesis. Intoxicated drivers in fatal crashes are concentrated at ages 21-44, which again supports our hypothesis for fitness advertisement at younger ages. Notably, speeding and drinking while driving seem to be related. A Closer Look Figure 1. Here is a case of simple risky driving behavior.
Males consistently stop less at stop signs than females, especially at night.
Frequency of Driver Behavior by Sex Males consistently failed to yield more frequently than females. First of all, failing to yield is risky driving behavior. Also, psychological mechanisms designed to interpret person-person interaction may interact with a conscious knowledge on the part of drivers that each vehicle contains another person. In the context of status competition, this constitutes a loss. The closer the vehicles come, the more each enters the personal territory of the other driver.