Common barriers to achieving fitness goals include lack of time, motivation, resources, and knowledge. Many individuals struggle to find time in their busy schedules for regular exercise, leading to inconsistent routines. Additionally, some may feel overwhelmed by complex fitness options or unsure where to start. Lack of support from peers or accountability can also hinder progress. Overcoming these barriers often requires setting realistic goals, finding enjoyable activities, and seeking support from friends, family, or professionals to create a sustainable fitness plan that fits individual lifestyles.