Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Walk your way to better brain health > 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 NEXT ON HEALTH24X The cricket coach searching for our next black superstar 43 minutes ago Partner content More: Daily Dose: Walk your way to better brain healthHealth-in-Motion advertisement Other news Medical 3 causes of a burst eardrum Medical Early treatment gets better results for rheumatoid arthritis Diet and nutrition 'Spare tyre' increases risk of early death Medical Scientists find DNA link between early puberty and cancer Medical Blood test may gauge death risk after surgery Medical Common nutrient increases blood clotting risk From our sponsors K Naomi takes a stand and shows women how to fight back WIN a R2000 Skin Renewal voucher! Constipation in women SA's old diesel vehicles continue to fuel allergies Live healthier Are you sure? » Aid your digestion What are digestive disorders? Are you really constipated? Many people think that if they do not have two or more bowel movements every single day of their lives they are constipated. This is patently not true, writes DietDoc. True of False? » SEE: How anaphylactic shock affects your body Stop believing these 10 allergy myths Do you still believe that hay fever is caused by hay? Or that food allergies are really common? No, and no again. We bust 10 myths about allergies.