People Who Suffer Depression And Anxiety After A Traumatic Brain Injury May Have Damaged White Matter. Jun 16, 2015 12:00 AM By Ed Cara @EdCara4. Researchers from the University at Pittsburgh Medical Center may have figured out why people suffer depression and anxiety after a concussion.
How to Read Speed Rating, Load Index & Service Descriptions. Using a P195/60R15 87S tire size as our example, the 87S at the end of the size represents the tire's service description. A service description identifies the tire's load index and speed rating.
What is Tire Speed Rating? Tire speed rating is a tire code that indicates a tire's maximum sustainable speed. Tires with high speed ratings typically have superior handlingat legal speeds. The set of tires on a vehicle should have the same speed ratings for optimal performance. However, if tires with different speed ratings are mounted on the car, the lower rated tires should be placed on the front. As shown in the graphic above, the tire speed rating is located to the right of the load index rating. The tire speed is listed on the sidewall using letters to represent different speeds. Below is a chart with common tire speed ratings.