Do the Side Effects of Smoking Marijuana still effect a person even after they quite smoking for good?

If a person smoked a lot of marijuana for almost a year, and then quite, are there any long term side effects that they will still have for the rest of there life, or even just a while after they have quite? for example short term memory loss, or misconception of time perception?
side effects such as forgetfulness, bad time perception, ect. can the person still have those side effects even after they have quite smoking like at least a month ago??

 

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