The statement "In 1985 less than 10% of the American population was obese" is false.
1. In 1985, the obesity rate in the United States was indeed lower than what it is today, but it was already higher than 10%. The prevalence of obesity in the U.S. has been steadily increasing over the years.
2. Data from that time period shows that the obesity rate in 1985 was closer to around 15% of the American population, which is higher than the 10% mentioned in the statement.
3. Therefore, the correct answer to the question is: False.
