A new study found that more young and middle-aged adults are having strokes, with figures from 2005 showing 18.6 percent of strokes occurring in people between 20 and 55, up from 12.9 percent in 1994. Additionally, the average age of people who experienced a stroke fell from 71 in 1994 to 69 in 2005. On the positive side, the stroke rate among people over 75 fell from 1994 to 2005. Study author Dr. Brett Kissela of the University of Cincinnati College of Medicine said, “The reasons for this trend could be a rise in risk factors such as diabetes, obesity and high cholesterol.” while also saying factors such as improved diagnosis may also have contributed. Kissela said, “Regardless, the rising trend found in our study is of great concern for public health, because strokes in younger people translate to greater lifetime disability.