Yes but it can mean that you are a bit weird or strange for your age
insane, batty, cuckoo, daft, demented, derailed, deranged, fatuous, impractical, loony, lunatic
Another word for anxiety is "uneasiness" or "worry."
madness, craze
Another word for brains is intellect or intelligence.
Another word for learned behavior is acquired behavior.
mad
Some other terms for demented are messed up, insane, mad, crazy.
Demented. Delusional.
the fish was born demented.
A demented figure of an unforgiven faith ,,.
'Demented' in Hebrew is "Meshooga" or "Metoraf", crazy.
Another word for dopey is stupid
Another word for ridiculous is stupid.
apish
going insane, going berserk, going mad.
Asinine.
Zany