Raynaud's is when the blood vessels constrict, stopping blood flow, causing colour changes, pain, and exhaustion. There is currently no cure, investment in medical research is desperately needed. Dr Howell, along with Prof Denton are leaders in the UK and global Raynaud's research field, based at the Royal Free NHS Hospital. Please make a donation to fund medical research only: https://www.justgiving.com/fundraising/raynaudsunit-royalfree #RaynaudsFreeWorld #Research