I am taking part in The Vitality Big Half to raise vital funds for PSC Support. Primary sclerosing cholangitis (PSC) is a rare and poorly understood immune-mediated disease of the bile ducts. Symptoms can be severe and unpredictable, sometimes progressing rapidly to end stage liver disease, requiring a liver transplant. Everyone giving to PSC Support will help fund groundbreaking PSC research, taking us closer and closer to an effective treatment. Donations also enable PSC Support to support people affected by PSC through their online community, helpline, information days and high quality, up to date information about this complex and little-known disease.