
Today, claims about vaccines, climate science, genetics, and reproductive health spread online at viral speed. Algorithm-driven content and social media personalities increasingly shape what the public believes about science, often with little accountability. Short-form videos, podcasts, and influencer posts now serve as primary sources of health and science information for millions of people, especially younger audiences. Research consistently shows that much of this content is inaccurate or misleading. Studies of TikTok and Instagram have found that a majority of popular health videos created by non-experts contradict established medical guidance. Influencers have been shown to profit from anti-vaccine and wellness misinformation, leveraging trust built through lifestyle content to promote unverified claims. In these spaces, an audience’s engagement is rewarded far more reliably than accuracy.