Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Dagga now also being used on animals > 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: Dagga now also being used on animalsHealth-in-Motion advertisement Other news Lifestyle How to communicate to your kids about nutrition Medical Testicular cancer survivor: 'My testicle doubled in size' Natural Health Why are biologics so expensive? Diet and nutrition It can take months to break bad eating habits Medical Childhood chemo may have lasting effects on memory Medical Back pain patients with depression get more opioids From our sponsors WIN a R2000 Skin Renewal voucher! Constipation in women SA's old diesel vehicles continue to fuel allergies Complete our allergy survey and stand a chance to win R 1000! Live healthier Wasting water? » South Africa is facing a water crisis Water saving tips Water quality report shocks SEE: How much water do you use per day? With level 4 water restrictions in Cape Town, residents are urged to use a maximum of 100 litres per person per day. Here’s how quickly it adds up. Life saving tip! » SEE: 10 things to keep in your first aid kit 10 first aid myths Here's why you need a first aid kit in the car Emergency services are often spread thin, especially when storms and major disasters strike. When travelling on the road, having a well-stocked first aid kit could be a lifesaver.