Researchers have already debunked the top 20 myths that we all commonly believe to be true — such as, the most heat escapes through your head, we only use 10 percent of our brains, and goldfish only have three-second memory. A new survey of 2,000 adults found nearly 4 in 10 aren’t even sure how they came to believe these fraudulent bits of trivia — but 49 percent have shared them with others, in the belief they were accurate. Nearly half believe that most human heat escapes through your head, but experts claim only around 10 percent of body heat is lost this way, due to its relatively small surface. And far from the notion that goldfish only remember things for a few seconds, they are thought to have memories that last as long as three months. And, regarding our brain power, even something as simple as clenching and unclenching our fist uses far more than 10 percent of the human brain, according to scientific studies. Other misconceptions we often pass on include the color red sends bulls into a rage, yet the animals can’t even see the color. Similarly, you might have said that it takes seven years to digest swallowed chewing gum, which isn’t true because we can’t digest it at all.