New figures show a considerable increase in suicides by middle-aged Americans. The Centers for Disease Control and Prevention says the suicide rate in people aged 35 to 64 rose by nearly 30 percent over the past decade, to 17.6 deaths per 100,000. The biggest increase was seen for men in their fifties, where the suicide rate increased 50 percent. Overall, suicides are now a greater cause of death in the United States than car accidents.