#WearAHatDay is the UK’s largest and most famous national brain tumour awareness and fundraising campaign, created by Brain Tumour Research. Various events during the month will help to maximise awareness, culminating in the official #WearAHatDay on Friday 28th March 2014. Likened to Red Nose Day for Brain Tumours by the media, #WearAHatDay is a really fun way to get involved in a very important cause. Coming up for its fifth year, #WearAHatDay 2014 will be the biggest and boldest yet.