Examlex
When an electron in a hydrogen atom drops from the second to the first excited energy state it emits a bright red emission line called hydrogen alpha.
Neurotransmitter Molecules
Chemical substances that transmit signals across the synaptic gap from one neuron to another.
Reuptake
The process by which neurotransmitters are taken back into the synaptic vesicles from the synaptic cleft, effectively stopping their action on nearby neurons.
Runner's High
A euphoric sensation reported by some individuals after extensive running, attributed to the release of endorphins.
Endorphins
Neurotransmitters produced by the brain that act as natural painkillers and are linked to feelings of pleasure and euphoria.
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