This surprises everyone, but the quality and level of healthcare actually doesn't have a huge impact on average lifespan! From memory, it's just around 1-2 yea

This surprises everyone, but the quality and level of healthcare actually doesn't have a huge impact on average lifespan! From memory, it's just around 1-2 years. In contrast, modern sanitation (underground sewers, mostly) and access to clean water added 15-20 years! Lifespan is far more affected by how healthy a life you live. In the US the opioid epidemic has lowered it ~1 year. (This is not intended as an argument, just some facts I think more people should know)