Answer:Here are some factors that might hinder someone from completing a physical activity log: * Lack of motivation: Sometimes, people may not feel inspired or interested in tracking their activity. * Forgetting: It's easy to forget to record activities, especially if they are part of a busy routine. * Complexity: If the log is too detailed or difficult to use, it might be discouraging. * Lack of time: Busy schedules can make it hard to find time to fill out the log. * Feeling overwhelmed: Seeing an empty log can be intimidating, leading to procrastination.