The trouble with this kind of survey is what falls under exercising? Does a daily hour of walk or having a regular sex life qualify as doing exercise? What abou

The trouble with this kind of survey is what falls under exercising? Does a daily hour of walk or having a regular sex life qualify as doing exercise? What about biking to work daily or nearly so? It kinds of remind me of a survey that a friend conducted a few years back in Nantes (France) on alcoholism. To the question, how many liters of alcohol per day do you drink?, alcoholics would reply a certain amount. The next question was: how many liters of beer or wine do you drink in addition? Quite a few added liters. Go figure.