Texting While Driving Doubles Reaction Time

A recent study by Texas A&M University's Texas Transportation Institute found that texting, or emailing, while driving doubles reaction time and makes drivers more likely to miss a flashing light.


The study was composed of 42 drivers between the ages of 16 and 54 who drove on an 11-mile (17 km) closed test course while sending or receiving text messages, and again while focusing completely on the road.

In the interest of safety for both participants and the research staff, researchers minimized the complexity of the driving task, using a straight-line course that contained no hills, traffic or potential conflicts other than the construction zone barrels. Consequently, the driving demands that participants encountered were considerably lower than those they would encounter under real-world conditions.

The researchers then asked the drivers to stop when they saw a flashing yellow light and recorded their reaction time.  The typical reaction time without texting was between one and two seconds, but while texting it increased to three to four seconds, regardless of whether the driver was typing or reading a text.

The researchers also found that a texting driver was 11 times more likely to miss the flashing light.

The fact that the study was conducted in an actual driving environment is important. According to research manager Christine Yager most research on texting and driving has been limited to driving simulators, whereas this study involved participants driving an actual vehicle. While the researchers believed their results are more significant since the study was in an actual driving environment they wrote that, "it's frightening to think of how much more poorly our participants may have performed if the driving conditions were more consistent with routine driving."

Perhaps this research will reach some of Texas A&M's more influential elected alums.

Metallic Hips: Dangerous Fail

A recent New York times article reported that studies involving patients with metal-on-metal artificial hips are suffering from health problems, including tissue destruction, as the hips shed tiny pieces of metallic debris.  


The article describes one particular case where the surgeons removing of one of these dangerous artificial metal hips saw, "a biological dead zone...[with] matted strands of tissue stained gray and black, [and] a large strip of muscle near the hip no longer contracted."  


More frightening than the destruction caused by the dangerous metallic debris from the artificial hips is that some patients have no obvious symptoms, like pain, to warn them that there tissue and muscle is being destroyed.