Can your iq change over time?

I know at least three people who had high paying jobs that ended up in poverty or making less than 1/10th what they were making before later on, I wonder if it’s possible for your iq to drop without you getting a brain injury, just due to old age or declining health.
Yes it can
Vote A
Not unless you get a brain injury
Vote B
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Can your iq change over time?
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