None of those things have happened to any significant degree period. There is a reason why obesity has skyrocketed in only 50 years and it’s not genetic. It’s of our own making. And yet instead of focusing on prevention we’re focused on symptom relief which granted is much more profitable if you’re Big Pharma ;). One of the reasons why healthcare costs so much in the US for everyone is because of the unhealthy lifestyle choices that people make either out of necessity (low income, cheapest option) or addiction (stuff yourself now, pay later).