This lasts, on average, 3 1/2 months. What is this? By Nancy Flagg | Jun 11, 2018 @ 8:16 AM June 11, 2018 Q: This lasts, on average, 3 1/2 months. What is this? A: The length of time someone goes Vegan SHARE RELATED CONTENT QI: This did not officially exist until the 1970’s. What is it? There is only one these in the United States. What is it? There are only 6 of these in the United States. What are they? 4% of people NEVER do this. What is this? About 35% of people say they would never do THIS at work. What is it? Nearly 70% of Americans are fed up with THIS. What is THIS?