Josh Started Smoking Pot on a Regular Basis When He

Multiple Choice

Josh started smoking pot on a regular basis when he was 13 and continued to do so into his late twenties. Now he is 40. Which of the following is most likely according to research?

A) After ten years clean, there is no sign he ever used pot.
B) He is unable to feel normal pleasures.
C) He has episodes of mania and depression.
D) He is 40 years old, but his brain has aged more rapidly.