Its cognition-enhancing effects may be due to an ability to influence the brains levels of noradrenaline, serotonin, and dopamine,4 three neurotransmitters with well-documented relationships to vigilance, attention, learning,5 memory,6 and the motivation toward cognitive effort.7 Meanwhile, its anxiolytic effects appear to be GABAergic (i.e., relating to the neurotransmitter GABA)
They are not medicines and are not intended to treat, diagnose, mitigate, prevent, or cure diseases
Blood-brain barrier permeability imaging using perfusion computed tomography
Such recommendations often involve modifying eating behaviors and increasing physical activity to reduce net caloric intake