micro chip in them. it measures head impact in which world rugby wants to do. but women in this area, it s been very well documented that women when they have a brain injury or a concussion and they do have different effects and symptoms to man. most of the studies that have been done of also centred around elite male athletes, particularly in rugby. this is an important time for world rugby to be able to gather data on women. it s really important study and great that the black ferns and the red roses will be wearing them both in matches and in training. them both in matches and in trainina. . ~ them both in matches and in trainina. ., ,, ,., them both in matches and in trainina. . ~ ., ., , training. thank you for “oining us. also let you t training. thank you for “oining us. also let you know training. thank you for “oining us. also let you know that training. thank you forjoining us. also let you know that bbc2 - training. thank you forjoining us. also let you know that