, Well over 100,000 miles ridden on Harley Davidson motorcycles. What is a soft tail motorcycle?. Softail motorcycles arose from the popularity of choppers, and before choppers, bobbers. Please allow me a very brief history lesson.
Tobacco use is the single leading preventable cause of death in the US.
See also: List of causes of death by rate and List of preventable causes of death. The leading cause of human death in developing countries is infectious disease. The leading causes in developed countries are atherosclerosis (heart disease and stroke), cancer, and other diseases related to obesity and aging.