Why do people become completely mad during their "12:s"?

[~SapphireStar~]

My cousin who is turning 12 soon is already like that. Hyper isnt the word, she is downright crazy! I envy her energy; football, swimming, rounders and the Olympics has influenced her to look into gymnastics!?

[Rengori]

The monster Pubertus.

[~SapphireStar~]

Oh gross.

[ff7+ff10 gurl 100]

I'll be 13 in a few weeks and I dont act like that. I do have lots of energy and I am crazy, I dont have hyperness Only when im excited.

[Shlup]

Also, the brain is becoming far more developed far more quickly than at any other point in time. What this effect has is that people begin to become more self-aware of what they want. Being laid-back and comfy, sadistic and sarcastic, and fart jokes aren't necessarily a bad thing. Then you grow up.

Actually it's developing faster during the very early years of life. Along with the hormones, it's the lack of development of the pre-frontal cortex (which doesn't develop until your early to mid-twenties) that's to blame.