1. What data did Canadian researchers Dr. John Staples and Dr. Donald Redelmeier use in their study?

2. a) What data did the two researchers compare?
b) What did they find?

3. For what age group is the risk of driving even higher?

4. Why didn’t the researchers consider whether cannabis played a direct role in the April 20 fatal crashes?

5. a) What have previous studies shown about THC?
b) According to the National Institute on Drug Abuse, marijuana can impair driving ability. A 2016 survey found that about half of users in Colorado think driving under the influence of pot is safe. What do you think? Explain your answer.

6. a) Explain how Dr. Staples got the idea for the study he conducted with Dr. Redelmeier.
b) What actions does Dr. Staples say 4/20 organizers should take? and US and Canadian officials?

CHALLENGE: The bottom line is this: people who smoke pot won’t admit it is a problem, or in any way harmful. Only people who don’t use recreational marijuana, but are close to someone who uses it longterm can explain the way it changes the person who uses it. (Ask a parent if they know any 40 year old who has been using it since he was a teenager and he/she will be able to explain the negative effect it has on a person.)