Data on the usage of medical cannabis to treat certain diseases is being gathered by the UK Medical Cannabis Registry. The PHQ-9 and GAD-7 measures, the SQS scale, and the EQ-5D-5 L scale were used by the researchers to track changes in the patients’ mental health, sleep quality, and general quality of life over the course of 1, 3, and 6 months. Any unfavorable incidents that happened during this time were also noted. This data is being used by researchers to determine whether medical marijuana is safe to use and whether it can improve these outcomes.