Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxic > Health-in-Motion 15 September 2016 How many words do you know? How many words do you know? It’s really quite difficult to estimate the size of the vocabulary of adults with any accuracy, but recently a team of European researchers has been using a simple test shared on social media platforms like Twitter and Facebook to unlock this mystery. Their results indicate that the average twenty-year-old native English speaking American knows some 42,000 different words. By learning approximately one new word every two days they are believed to add 6000 more words to their vocabulary by the time they turn 60. 0 NEXT ON HEALTH24X Why maintaining a healthy weight before 40 is important 2019-10-16 08:45 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Parenting How stress in pregnancy may affect preterm delivery risk and baby's sex Mental health Scientists shed light on how brains turn pain up or down Medical Beyonce's dad shines the spotlight on male breast cancer Fitness The road to better exercise might be in your playlist Medical Skin cancer on the neck ‘more likely to spread’, study finds Medical Kids + gadgets = less sleep and more risk for unwanted weight Live healthier Lifestyle » E-cigarettes: Here are five things to know E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places. Allergy » Ditch the itch: Researchers find new drug to fight hives A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.