38 Myths People Still Believe in 2026 According to Reddit

It's a fact: you aren't swallowing a single spider in your sleep tonight. Despite the persistent urban legend, spiders aren't keen on walking into the mouth of a vibrating, heat-emitting predator. As of January 2026, we're living in an era of unprecedented connectivity, yet the r/AskReddit community has revealed that collective ignorance is surprisingly resilient.

The Most Persistent Myths People Still Believe on Reddit

The thread, inspired by comedian Ron White's famous claim that 'you can't fix stupid,' highlights how misinformation survives through generations. At the top of the list is the debunked claim that vaccines cause autism, a myth that continues to circulate despite massive scientific counter-evidence. Another classic is the 10% brain usage theory; in reality, neurologists confirm that humans use almost every part of their brain at all times.

Some myths are more mundane but equally stubborn. Many still believe goldfish have a 3-second memory or that swallowed gum stays in the gut for 7 years. These inaccuracies are often passed down as 'common sense' from parents to children, proving that once a story takes root, it's incredibly hard to dig out.

Media-Driven Misconceptions and Legal Realities

Movies have also played a huge role in cementing myths people still believe. For example, the dramatic 'reading of the will' where a family gathers in a lawyer's office is a theatrical trope. Estate lawyers on Reddit noted that while this might have happened 150 years ago due to low literacy rates, today, copies are simply mailed. Similarly, the idea that blood is blue until it touches oxygen remains a shockingly common misconception among adults.