This is your brain on drugs, naturally.
“Just Say No” doesn’t apply to these drugs. Neurotransmitters are built-in drugs. You have to have them to make interconnections between neurons.
If the activity within a neuron is primarily electrical (though battery driven), the connections between neurons are typically chemical. Once a neuron’s depolarization reaches the terminal buttons, calcium channels are activated to release neurotransmitters into the synapse. [Read more…]