It's often seen in early adolescence.
4 seconds sound clip from the The Exorcist movie soundboard.
You can hear this line at 00:34:10 in the Blu-ray version of the movie.
Quote context
[...]
- Put this in your mouth. Keep it there.
- This tells your temperature. When the red light goes on, that's your temperature.
- A disorder of the nerves. At least we think it is.
- We don't know yet exactly how it works.
- It's often seen in early adolescence.
- She shows all the symptoms. Hyperactivity. Her temper. Performance in math.
- Yeah. Why the math? What is that?
- It affects her concentration.
- Now, this is for Ritalin. -Okay.
[...]