Social media can influence health behavior by shaping perceptions and promoting trends related to fitness, nutrition, and well-being. Platforms like Instagram and TikTok often showcase fitness challenges, diet fads, and wellness tips, which can inspire positive changes or lead to misinformation. While positive influences may motivate individuals to adopt healthier lifestyles, there can also be negative impacts, such as unrealistic body expectations or unhealthy comparison with others. It’s essential for users to critically evaluate the information encountered and prioritize evidence-based sources when seeking health-related guidance online.