A study showed that changes in the functioning of opioid neurotransmitters in the brain may underlie anorexia.

which is based on the type of neurotransmitter released. Excitatory synapses send signals that encourage the creation of an action potential by the next neuron; inhibitory synapses work against it.

Alcohol suppresses excitatory signals while enhancing gamma-aminobutyric acid (GABA), the main inhibitory neurotransmitter in the brain. When GABA receptors are stimulated, they reduce neuron firing, ...

After release, the neurotransmitter crosses the synaptic gap and attaches to the receptor site on the other neuron. It can either have an excitatory or inhibitory effect on the receiving neuron ...