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What is known and objective Cannabidiol ( CBD) is the main non-psychotropic component of the Cannabis sativa plant. REM sleep behaviour disorder ( RBD) is a parasomnia characterized by the loss of muscle atonia during REM sleep associated with nightmares and active behaviour during dreaming. We have described the effects of CBD in RBD symptoms in patients with Parkinson's disease. Cases summary Four patients treated with CBD had prompt and substantial reduction in the frequency of RBD-related events without side effects. What is new and conclusion This case series indicates that CBD is able to control the symptoms of RBD. [ABSTRACT FROM AUTHOR]

Synopsis Optical microscopy and centrifugation were used to observe the structural changes during evaporation of a commercial skin lotion of unknown composition. The degree of evaporation was determined from the changed weight of a microscope slide with the emulsion on a defined area and thickness, the evaporation loss vs. time being measured by a balance under an infrared lamp. The results revealed not only which parts of the emulsion were most prone to evaporation without chemical analysis, but also gave surprising information as to which kind of structures would appear after extensive evaporation. The importance of these changes for the action of a skin lotion is briefly discussed. [ABSTRACT FROM AUTHOR]