A case study of a U.K. woman whose lung tumour shrunk without the aid of conventional treatments while she was taking a daily dose of cannabidiol (CBD) oil has scientists suggesting it may be worth studying the use of CBD oil further. The report, published in BMJ Case Reports in October, describes how the woman’s tumour shrunk from 41 mm to 10 mm in roughly two and a half years. Cannabinoids are similar to endocannabinoids,…