Obesity is a big problem in the US, do you know much about that?
Yes in fact obesity has continued to grow within the United States and the US now ranks the most obese country in the world. 
Wow that's unfortunate, do you know what percentage of adults are obese in the US?
About 160 million people in the Us are obese currently. So about 35%
Yikes, that's quite a lot. Are there any solutions to the obesity epidemic?
A healthy diet and more excersize for sure, Its crazy that an obese person in America incurs an average of $1,429 more in medical expenses annually.
Wow that's a lot, healthy diet is key. I try to follow a Mediterranean diet, have you heard of it?
Yes I have, The Mediterranean diet is a diet that was actually inspired by the eating habits of Greece, Southern Italy, and Spain in the 1940s and 1950s.
Yeah it's a great diet, it keeps me healthy. Some people do a ketogenic diet though.
. The ketone bodies pass into the brain and replace glucose as an energy source. An elevated level of ketone bodies in the blood, a state known as ketosis, leads to a reduction in the frequency of epileptic seizures. Around half of children and young people with epilepsy who have tried some form of this diet saw the number of seizures drop by at least half, and the effect persists even after discontinuing the diet. Some evidence indicates that adults with epilepsy may benefit from the diet, and that a less strict regimen
randomly from that population (also known as a cross section of that population), measure their weight and height, and calculate what percentage of that sample is categorized as obese. This cross-sectional sample provides us with a snapshot of that population, at that one point in time. Note that we do not know based on one cross-sectional sample if obesity is increasing or decreasing; we can only describe the current proportion.
Cross-sectional data differs from time series data, in which the same small-