Get involved Recent fundraisers Jo-Anna Durham - Cardiff Half Marathon When Jo-Anna Durham's son was diagnosed with congenital hypothyroidism at just four weeks old, she tells us she felt heartbroken, as any parent would be. The information Jo-Anna found on the BTF website helped the family to understand more about her son's condition and reassured her that he will be ok. To thank the BTF for this support, Jo-Anna and her sister ran the Cardiff half marathon. Jo-Anna raised £415.00 for our work. Jo-Anna and her children Jo-Anna during the half marathon Manage Cookie Preferences Please ensure Javascript is enabled for purposes of website accessibility