yeh it definitely does.
all of your cells work only at half speed.
you and your brain get lazy so you dont care about developing.
you use pot to get through your emotions instead of learning new coping mechanisms. and yeah, there are more things that can happen if you start smoking before you're full-grown. but i forgot them.
there is a very informative program about cannabis that covers all of the things that happen if you start too early but i forgot the name of it. ( yeah i started really young lol) so yeah it fucks with your memory and learning ability and in the end it basically robs you of your own person.

I agree with innerdialogue. It's like it numbs your emotions so you don't learn how to deal with them. Then when you quit it's like, BAM however many years of smoking you've done repressed emotions come flooding back and you feel lost. But it is possible to get it back, just takes work. I would say that this very thing is the most dangerous thing about pot. There's probably people who keep things like this in check, but for us who use pot to relief anxiety and relax, sadly I would say this is the very thing we're doing, emotional numbing.

Cannabis has never numbed my emotions but it does elevate them. People with emotional problems tend to use marijuana as a band aid. Then they find years later when they rip off that band aid it is a festering pile of oozing goo.

sugarhell. the first 6 years of my daily use, i never had a clue how it was numbing me.
in another post you described it makes the bad feeling go away. that is emotional numbing. that's the pile of ooze that you seem to hide too. the elevated feelings, are fake. soon, that elevation will be nothing more than just your daily necessity to feel normal.