Not all sources give four hours as the guideline for priapism occurring: The duration time of a normal erection before it is classifiable as priapism is still controversial. Ongoing penile erections for more than 6 hours can be classified as priapism..
Guinness World Records (London, England) Considering that the average lifespan of a chicken is generally no more than seven to eight years, Keith and Donna contacted Guinness World Records on July 30, 2001, to make them aware that Matilda was eleven years old and still in excellent health.
U.S. cars from the 1950s to 1970s had an average life span of 100,000 miles, or eight years. Today, the median life expectancy of an American-made automobile is 12 years, or about 128,500 miles. While figures vary, the average life span of a Volvo is second only to a Mercedes.