Cannabinoids have a strong influence on how our brains work and how we behave. Many people are only aware of the recreational aspect of cannabinoids. But in fact these molecules naturally exist in our brains where they participate in various intrinsic processes.
Altered cannabinoid signaling, for instance due to chronic use of marijuana, results in a range of impairments. Similarly, mice lacking cannabinoid receptors exhibit reduced activity levels, as well as deficits in learning and memory.