Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Rare flesh-eating bacteria kill boy within days > Health-in-Motion 03 February 2017 Heading a soccer ball may not be as harmless as it first seems Heading a soccer ball may not be as harmless as it first seems. British scientists got soccer players to head a ball fired from a machine designed to simulate a corner kick 20 times in a row, testing their brain function before and after the experiment. The outcomes suggest small changes in brain function even after a single session with memory test performance dropping by between 41% and 67%. The effects normalised within 24 hours and it is unclear whether any changes would remain temporary after repeated heading sessions. 0 More: Daily Dose: Rare flesh-eating bacteria kill boy within daysHealth-in-Motion advertisement Other news Lifestyle The purrfect diet for your fat cat Medical When do kids need to go to the orthodontist? Lifestyle 6 solutions to common problems you have with your doctor Lifestyle Can crocodile poo and olive oil prevent pregnancy? Parenting 7 ways to take care of your mental health during pregnancy Mental health Did Robin Williams' suicide spur 'copycat' acts? From our sponsors Managing diabetes in the workplace Back-to-school with diabetes Discover treatments that can help reduce acne What can I do to reduce or remove acne marks? Live healthier Fact or myth? » Clearing up the confusion around coconut oil Coconut – the 'fruit of life' Can coconut oil really help you lose weight? Experts dish on the high-cal weight-loss tactic. Sobering perks! » 5 tips to avoiding a hangover Can you really be allergic to alcohol? Is giving up booze for a month actually worth it? Many people commit to "Dry January" – but does it do your body any good?