It is here,
in the interaction between neurons,
that the lithium
(after traveling
through the body)
finally goes into
action.
Although it is unclear what mechanisms of action lithium executes at this site, it likely binds to the cells sending excitatory messages (embodied here in the traingle shapes) and stops them from being sent. These messages, sent in the forms of neurotransmitters like glutamate or norepinephrine, are likely a major component in manic states; lithium's actions preventing their transmission
allows the user...