It makes you wonder what hidden public health problems are impacting us and will only be understood centuries later. Will endocrine disruptor chemicals like phthalates cause the downfall of the American empire? The jury is still out.
Shitty healthcare systems, but they're not exactly hidden. People just choose to ignore how bad they really are.
Healthcare makes only a marginal difference. The Roman Empire managed to last for centuries with no healthcare "system" at all. Public sanitation, and access to safe food and water, are far more important than quality of health care.
I feel like we're already seeing the effects of chemicals like lead now. How many older people are suddenly radical Trump or QAnon supporters?