to 1972. So do you remember the name Ancel Keys, so add some keys in we've spoken about on the podcast before. He was famous for running the Minnesota starvation experience experiment, if you want to go into that and one Learn more about the Minnesota starvation experiment. Go to Episode Oh, I think it's 92. It's called the psychology of hunger. And in this study, he had a bunch of consequences a conscientiously objectors. This was in 1944. He had a bunch of them. And there was a lot of kind of shame around being a not being at war. And he wanted to see how to refeed people in war torn places. And so he did this study where he quote, starved, it was starvation experiment, and, and then referred the volunteers Guess how many calories they were on 1800 calories a day. And in the study, which is unreasonable, I'm pointing that out is because that would be seen as a generous diet, you know, calorie amount on a diet, right, but, but the men in this study had terrible side effects, even when so they, when they were, they had a control time where they were fed, I think, 3600 calories for a few months. And then they did this for, I think, three, six months and go to the episode, it tells you more, episode nine to three to six months where they were doing the 1800 calories, and then they had another three months where they would refeeding back at the 3000 Plus calories. And during the time that they were in the starvation period, they just they basically had a really tough time. And then it didn't end when it was the refeeding time. The the effects were were really, really long term on these men. One man chopped off three of his fingers. One man had to be hostile but hospitalized well after the study because he couldn't stop eating, because he was he had developed but but develop developed BDD binge eating disorder. So later on, and so he had that knowledge from 1944. Five years later, he published a study, he used that information earlier to help with the war efforts to help people when they were coming across people who were who were starved. So that was 1944. And then, in 1972, he did a study where he popularized the use of Quickflix original index and renamed it the body mass index, again, made the same mistakes, steak is quite a lot using data from predominantly white men. And that study that he did, the National Institutes of Health then popularized the use of the body mass index as a way of establishing health. So what what really gets on my flaps about Ancel Keys is he saw the, the damage that starving people did to them, and, you know, starving them on still, you know, what would be now considered, you know, a sensible diet, right? And he saw what happened, and instead of championing work in regards to not prescribing diets, he went on to create the Mediterranean diets. So it's like, he was so close, he was so close. You know, his work was, you know, obviously, there was there was good work there. And he did, you know, very, very helpful things for for many people, but it's like he could have, it feels like he didn't put two and two together. You know, and and he just couldn't get out of that fatness was something bad. Yeah, and so him and his wife released a number of diet books later in the years. So that was Ancel Keys. Okay, so I don't know why I went straight to now selkies in 1974, because actually, we're gonna go to 1940 So let's go back in time, let's get back in time. So Louis, Dublin was the chief statistician for maternity Metropolitan Life Insurance Company and now was the biggest insurance company in the world at the time. So this fella Louie Dublin arbitrarily drew up a chart of the weight. Height of, of people who bought his insurance their insurance Met Life Insurance, and included frame size. small medium large, what Burfoot frame size means what what friends is like a human beings a tense leg. So he got people's heights weights and frame size, and concluded that the people of a certain size lived longer. But using only data from people who were 25 to 30 years old. And data which was self reported. Data from people who were rich enough to afford life insurance, that's going to be a lot of white people seeing a theme here, the theme here, female, a perfect white body. And so this this, you know, the chart that he drew up was not based on on evidence or any scientific study. He made the weight, which someone is considered too heavy, much lower than what it was originally. So previously, just a small percentage of the population, it'd be like, you know, how, you know, the doctor might say, Oh, your kids in the 95th percentile for height, and you know, that most of the kids are shorter than your kid, right? So that before, you know, the people who were the highest weight people, but like those were the people who had the biggest bodies, right? Were or were considered too big. So he changed it so that suddenly overnight, and you'll see this is happened a lot of times before when I say a lot of times, or two more times, this has happened big overnight changes to BMI, and what is classed as too big, suddenly, going from a small percentage of people who were considered too fat to half of the American population was reclassified as too fat. So with the stroke of a pen, he was Angel able to change people, people's premiums and charge people's premiums, increase the premiums due to their body size and establish that their bodies were wrong. I mean, I gotta give it to them, you know, for capitalists, you did it right. And his ideas were adopted by the medical establishment and then by the US government, and Louis Dublin's ideas contributed to the toward the creation of the modern diet industry and has had a massive cultural impact. Him doing this as lead doctors telling people in droves to lose weight. And people at the time in the 40s and 50s, rushed to pharmacies in panic, a huge market of consumers, consumers were convinced that they were too fat. And corporate America realized to sell the impossible dream of fineness, they could make an imaginable profits. So corporate America was like licking its lips. And I guess he you know, Louis W. Mills from corporate America, right, you know, was one of their folks was like, Hey, everybody. Yeah, you're too fat. You're too ugly. You're too this. You're too you know, you know, taking on the fat thing. Oh, don't worry, we've got the cure. Right, we've got the cure. So that was in the 1940s. Let's move to 1950. John Mayer. So John Mayer. So this guy is the person to come up with the idea that physical activity will help you lose weight. He was a French American scientist. And he established the popular notion that