such as: reduced pain and stiffness an increase in sleepiness They also had slightly higher mental health scores than the non-users. 2019 Dutch study A 2019 Dutch study looked at the effect of cannabis on 20 women with fibromyalgia. Over the course of the study, each participant received four types of cannabis: an unspecified amount of a placebo variety, which contained no CBD or THC 200 milligrams (mg) of a variety with high amounts of both CBD and THC (Bediol) 200 mg of a variety with high amounts of CBD and low amounts of THC (Bedrolite) 100 mg of a variety with low amounts of CBD and high amounts of THC (Bedrocan) The researchers found Canzana CBD Oil the spontaneous pain scores of people using the placebo variety were similar to the spontaneous pain scores of people using some of