Clark read a story recently about how difficult it has become for young people to rent a car. Years ago, if you were 18 to 20 years old, you paid a surcharge to rent a car. Then, at 21, you were free to rent a car. Now, most companies charge as much as $100 extra per day for those between 21 and 24. How can these companies do that, you may ask? Well, the accident rates for people in their early ‘20s are outrageous. Now, not every 22-year-old is going to get in a wreck, but the statistics don’t lie. So, why are some young people such reckless drivers? A new study from the National Institutes of Health shows that certain regions of the brain that deal with risk situations are not fully formed until the 25th birthday. In fact, some scientists now recognize adolescence as lasting until age 24. We used to think immaturity and lack of experience were the main causes of accidents among young people, but maybe it’s more biological and scientific than that. You can now blame it on your brain.