Who needs all those expensive drugs when you've got advice!

Based on this thread in mock_the_stupid started by kevinpease (metaquotes'ed here).

Claimed problem	Advice
clinical depression	Just cheer up!
food allergies	Come on, just try some!
anorexia nervosa	You really need to eat more.
chronic fatigue	Hey, wake up!
insomnia	Just go to sleep.
addiction	Why don't you just quit?
panic attack	You really should calm down.
Generalized Anxiety Disorder	Stop being a worrywart.
dyslexia/dyscalculic/dysgraphic	Just try harder!
dyspraxia	Pay a bit more attention to what you're doing!
ADHD	Concentrate!
Post-Traumatic Stress Disorder	Get over it.[*]
phobias (in general)	Quit being afraid and just go do it.
migraines	It's all in your head.
multiple personalities	Line up all your personalities, pick one, and stick with it. Or: Quit showing off and pretending to be more than one person.

[*] Long version, "So you were molested/raped/abused/whatever when you were a kid. You're an adult now. Get over it."