[steve8714]

Just like obesity, they changed the definition to fit the policy agenda.

[ClearCase_guy]

The old Conservative principle applies:
If you want less of something, tax it.
If you want more of something, subsidize it.

Currently, a lot of dollars are being thrown at ADHD and at Austism. It should not surprise anyone that the number of sufferers keeps going up. There is an entire industry that wants to "find" people who need treatment.