I think we are all in denial with regards to just how unhealthy and stressed human beings are, and the world in which we live now is, compared to several generations ago.
Yes, nowadays we have better medicines, vaccines programs etc but that’s just keeping people alive, not making them better or curing them of their ailments. The world seems to be run by the pharmaceutical companies.
I’m nearly 50 and my grandparents and greatparents, imo, lived healthier and happier lives than we do today. They never had take aways or quick/fast food. My grandmothers were at home, so had the time to cook foods from scratch and eat the left overs instead of a shop bought (salt ridden) sandwich the next day. These foods were purchased every few days and were fresh and in season, not long life or frozen. Most foods were from local farms/sources or as local as can be. Not shipped from half way across the world, sprayed to an inch of their lives and force grown. Most foods were wrapped and stored in paper, in glass or wooden containers not plastic which leaks out God only knows what into our food stuffs. They also didn’t drink alcohol in the huge quantities we do now.
The females in my family were not on artificial hormonal contraceptives to disturb their natural cycles.
Most of the men worked locally, without long, stressful commutes. Overtime and stressful deadlines were unheard of.
The world wasn’t 24/7 and instant. If you needed to purchase a product you would have to wait for weeks for delivery not instantly delivered the same day. Not like the rushed Amazon world we live in today. I live near an Amazon depot and the vans fly out of there like swarms of bees, just so someone can have their (probably unnecessary product) the very next morning. It’s a mad world!
Genetics and how you look after yourself play a small part but the huge amounts of anxiety and stress, the shit ultra processed foods everywhere, medications, the busy, rushing about lifestyles of so many and all the atmospheric toxins must all contribute to the bad health issues we see today. We are not robots just a mass of organic matter and we can’t keep pushing ourselves through these unnatural ways of living without horrible consequences.