A 16-year-old uses marijuana daily. To help her do better in school, what advice would you offer that would be most important?
a) Marijuana increases blood pressure; she should not run after smoking it.
b) The effect of marijuana fades fastest if she eats after use.
c) Marijuana causes memory gaps that interfere with learning.
d) Marijuana leads to muscle laxness, so it should not be used close to gym class.
Answer: Marijuana causes memory gaps that interfere with learning.