Drink that cheers adds to the years

  1. What questions would you like to ask Professor Simons about his study before believing the results he claims?
  2. Can you think of any other "lurking" (hidden) variables which might account for the greater life expectancy of people who drink 2-3 alcoholic drinks per day?
  3. Do you think it is important to know that this survey was carried out with elderly people? Why? Would you expect the same results with young people? Why or why not?

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