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 31 May 2017 Ever wonder why the lights don’t dim or flicker every time we blink? Ever wonder why the lights don’t dim or flicker every time we blink? A new study conducted by a team of international scientists indicates that the brain constantly repositions the eyeballs to keep them focused on what they are looking at even though the eyelids close every few seconds. "Our eye muscles are quite sluggish and imprecise, so the brain needs to constantly adapt its motor signals to make sure our eyes are pointing where they're supposed to," says lead author Gerrit Maus. 0 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Fitness Four-time Olympian Hendrick Ramaala’s advice on breaking limits Diet and nutrition 5 easy, healthier recipes for your Braai Day feast Fitness Want to get stronger? Stop ignoring these muscles in your workout Diet and nutrition You won’t believe these 6 health benefits of homemade chocolate cake Diet and nutrition Breakfast vs. dinner: Which meal is mightier? Lifestyle Do these sleep myths really work to get you to bed? From our sponsors Dementia and Incontinence: what you need to know Tell-tale signs you need a mattress upgrade Keen to win a R2 000 voucher? Good health begins in your gastrointestinal tract Live healthier Looking younger » Can maple leaves help you look younger? New research has found that maple leaf extract can help you look years younger. Killer foods » Wild mushrooms a 'silent killer' Health practitioners are warning people to stay away from wild mushrooms.