Despite of the now well-recognised importance of trace elements in medical field - it is established that several diseases of the central nervous system, like Alzheimer’s disease are connected to alterations of trace elements levels - reliable data on their concentrations in normal and pathological human brain are still rare. Correlation studies are even more scarce in the literature, especially in case of Alzheimer’s disease.

Endogenous cannabinoids are very important regulators of the central nervous system. Their role in hormone system was validated in the prolactin release at the pituitary level. Exogenous cannabinoids also affect multiple hormonal systems including the hypothalamo-pituitaryadrenocortical (HPA) axis.