A simple motion light could be one of the most effective fall-prevention tools in your home. By automatically illuminating hallways, bathrooms, and stairways at night, these inexpensive devices help seniors avoid one of the most common causes of injury: falls in the dark. Pexels This post includes affiliate links. If you purchase anything through these affiliated links, the author/website may earn a commission. Getting up in the middle of the night seems harmless until it isn’t.