Neurotransmitters would continue to bind and rebind with the postsynaptic receptors, which would continue induction of a signal in the postsynaptic neurons, which would repropagate the initial signal.
The case in drugs that block reuptake transporters (such as in serotonin reuptake inhibitor and norepinephrine reuptake inhibitor antidepressants, and dopamine reuptake inhibition found with cocaine and methylphenidate).
I believe it’s C.) nonprofit
protozans is your answer thats why they say wash your hands before you eat or when you come home from a day outside cause the bad bacteria goes in your body and then many problems happen. and thats how sicknesses spread or diseases.
The answer is:
Age
This is because if you are younger your body can't handle as much because it's not fully developed. Now older people can handle more because their bodies are fully developed.