study done by the cdc on an ongoing basis, and in a survey of about 4,500 adults, they were asked about their marijuana use. and just under 600 were current users of marijuana. we looked at their ability to handle carbohydrates, the ability of the body to handle sugar. and how well the body metabolizes it. and what we found is that among current users, people who use marijuana in the last 30 days, there was an improvement in their metabolism. so that their fasting insulin level was lower, they had less insulin resistance than nonusers, their good cholesterol was a little bit higher, about three points higher. and their waist circumference was skinnier, a little bit, on average, about -- just about an inch narrower than the nonusers. and this was after adjusting for other differences between the users and the nonusers.