When we fall on stairs, we tend to blame ourselves and generally attribute the fall to carelessness or inattentiveness. In fact, design substantially influences the likelihood of whether you will fall, and how hurt you will feel when you have stopped bouncing. Poor lighting, absence of handrails, confusing patterns on the treads, risers that are unusually high or low, treads that are unusually wide or narrow, and landings that interrupt the rhythm of ascent or descent are the principal design faults that lead to accidents.