[header] How to not fall down stairs [title] Pay attention. [step] Going down stairs is done so frequently that many accidents are caused by not paying attention to the stairway environment. Research suggests that people tend to look only at the first three steps of a stairway, rather than at each step. 
When walking down unfamiliar stairs, be careful to attend to each step. [substeps] In older stairways, stair depth may vary.