How do you become mentally challenged?

Answer:
Shy of a traumatic head injury, you do not become mentally challenged. You either are or are not.

The use of drugs can aid in the process. It is not a desired affect.
Contributor: N2146X
First answer by C.Hainsaw. Last edit by N2146X. Contributor trust: 383 [recommend contributor recommended]. Question popularity: 1 [recommend question].