On 12 September to mark the launch of Prevention week, Breast Cancer Uk will be holding an online flash mob to flood social media platforms with a shared message. They are using a platform called, Thunderclap, to share their message across multiple social media platforms. It’s simple to do –go to www.breastcanceruk.org.uk, click on the button and simply choose which social network site you want to share their message on. Then on 12 September, watch as everyone’s messages are simultaneously shared around the world – making one big loud thunderclap on PREVENTION.