--- title: I. Questions We Didn’t Know Had Answers description: How do I get this stupid song out of my head? Try chewing gum, which one study found led to a 60% reduction in thoughts... canonical: https://time.com/3935312/i-questions-we-didnt-know-had-answers/ author: TIME Staff article:opinion: false article:content_tier: free article:published_time: 2015-06-25T10:52:35.000Z article:modified_time: 2026-02-22T08:31:49.243Z article:section: World og:title: I. Questions We Didn’t Know Had Answers og:description: How do I get this stupid song out of my head? Try chewing gum, which one study found led to a 60% reduction in thoughts... og:url: https://time.com/3935312/i-questions-we-didnt-know-had-answers/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production og:image:width: 1200 og:image:height: 675 og:image:alt: TIME og:type: article twitter:card: summary_large_image twitter:title: I. Questions We Didn’t Know Had Answers twitter:description: How do I get this stupid song out of my head? Try chewing gum, which one study found led to a 60% reduction in thoughts... twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production --- # I. Questions We Didn't Know Had Answers by [TIME Staff](/author/time-staff/) ## TIME Staff Jun 25, 2015 10:52 AM CUT by [TIME Staff](/author/time-staff/) ## TIME Staff Jun 25, 2015 10:52 AM CUT How do I get this stupid song out of my head? Try chewing gum, which one study found led to a 60% reduction in thoughts about earworms Which came first, the chicken or the egg? Most scientists say the egg, which has been around for 100 million years What’s the sexiest dance move? Women believe that men who vary movements in their torso and neck are significantly better dancers What does space smell like? Astronauts have compared the smell to that of seared steak or hot metal When does Marty McFly get here? He arrives on Oct. 21, 2015 Why does squinting help you see better? It decreases the amount of stray light that enters your eyes, which blurs your vision SOURCES: QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY; EGG & NEST, BELKNAP PRESS; BIOLOGY LETTERS; NASA; UNIVERSAL PICTURES; CORNELL UNIVERSITY ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3935312/i-questions-we-didnt-know-had-answers/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3935312/i-questions-we-didnt-know-had-answers/"},"headline":"I. Questions We Didn't Know Had Answers","datePublished":"2015-06-25T10:52:35.000Z","dateModified":"2026-02-22T08:31:49.243Z","description":"How do I get this stupid song out of my head? Try chewing gum, which one study found led to a 60% reduction in thoughts...","url":"https://time.com/3935312/i-questions-we-didnt-know-had-answers/","keywords":[],"thumbnailUrl":"","author":[{"@type":"Person","name":"TIME Staff","jobTitle":null,"url":"https://time.com/author/time-staff/"}],"articleSection":"World","image":[],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/world/","name":"World"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/3935312/i-questions-we-didnt-know-had-answers/","name":"I. Questions We Didn't Know Had Answers"}}]}] ```