How come my pupils are always either very big or very small?!


Question: How come my pupils are always either very big or very small?
What are ALL the possible causes of this?

Answers:

very big: dark room, increase in dopamine in the brain either by sexually aroused or drugs(stimulants).
very small: a lot of light in the room, changes in neurochemistry, drugs (depressants).



I don't know ALL the possible causes of this, but the most common cause is that your pupils adjust their size according to the amount of light present. i.e. When it's bright outside, your pupils contract (get smaller), and when it's dark they relax (grow bigger).

And uh, yeah. I'm too lazy to write down the rest.

Have fun being enlightened by teenagers online (:




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