"The brain finishes developing at 25!" (And all the ridiculous claims people make while parroting this false "fact.")
This idea is a glorified myth based on outdated and unfinished data, and has been proven wrong by further studies.
First, there's no magic "adult brain" age where your brain flips a switch and you're suddenly an "adult"-- at best there are average ranges where your brain gradually reaches a rough "adult phase." And it's a range because everyone's brain is unique and develops at its own pace.
And even then, your brain will change and rewire itself throughout your whole life...
Second, the actual average age is much later than we used to think-- The average isn't 25... it's in your 30s. And this is just an average; it happens faster or slower for many people.
Third, and most annoying of all-- the claims people make after parroting this narrative are ridiculous.
I've literally seen people say stuff like: "I woke up on my 25th birthday and could feel how different my brain was! I don't even want to hang with my friend anymore because he's 23... he practically has a baby brain!"
That's complete insanity. If you woke up one day with your brain feeling completely different, your brain didn't magically mature overnight-- you probably had a stroke. (Or more likely are just making it up.)
Can we please stop spreading outdated misinformation?