Cycling is the most common activity leading to referral to Beaumont Hospital’s national centre for treating traumatic brain injury . According to a new study, of 26 patients with cycling-related head injuries who were transferred to the unit - only two were recorded as wearing a helmet . We asked Martina Callanan - member of Cyclist.ie and deputy chair of the Galway Cycling Campaign for reaction and whether the figures add merit to the argument for mandatory helmets. Listen and subscribe to Newstalk Breakfast on Apple Podcasts or Spotify. Download, listen and subscribe on the Newstalk App. You can also listen to Newstalk live on newstalk.com or on Alexa, by adding the Newstalk skill and asking: 'Alexa, play Newstalk'.