can your IQ actually increase? why do I feel so much more intelligent

No, it can only decrease.

>>8756894
What? Who designed this stupid world?

>>8756890
I know the feel. By some measures, the brain doesn't stop developing until age 25. It stands to reason that it may continue to develop a little bit past that age for some.

i'm certain it can

i remember "not getting" trig in high school quite clearly, I got a D in trig

back in college now after a stint in the military during which i did no study whatsoever, 4 semsters in now as a dual major physics/EE and maintaining a 4.0 gpa taking 17-18 credits a semester, and it's fucking EASY. i can't even imagine what there was to "not get" about something like trig or basic physics, so the only explanation is that i actually am smarter now than i was 10 years ago

>>8756905
adding on though, i actually do finish my homework now, sit in the front of class and pay attention.

so, maybe i was just never trying before. even so, you could consider the failure to realize that one should actually apply oneself in class to be a failure of intelligence. so the point still stands

>>8756905
>>8756913
highschool is a really shitty learning environment

>>8756890
28yo pretty much solidifies all growth in the body, last being brain changes. Change after that is environmental as best and age-decrepit at worst.

What you can do is learn how to take IQ tests better. That's about it without outside meddling with your genes/neurons or whatever hand-waving tech you can think of.

>why do I feel so much more intelligent than 5 years ago?

That's wisdom. If you don't feel that about your past, you are not growing as an individual and have reached stagnation.

>>8756905
Same here, for some reason I did shit in Trig during High School.

>>8756898
some brainlet called xenu

>>8756890
Males brains don't completely develop until about age 35.

>>8757450
Does that mean there's still hope for an 18 year old?

>>8757501
no

>>8756905
>had trouble getting through Spanish II
>take algebra and trig classes after Spanish II
>Spanish III and higher is a cakewalk
It was like math was a catalyst for a completed unrelated subject

your body constantly adapts
for better or for worse, because cells are such plebs that they are entirely dependent on stimuli

So if you keep your mind engaged and keep learning, chances are your mind will grow quite adapt to usage

Idk about IQ, that shit is a meme
some meth might increase your IQ