Despite PBS being Koch Brother influenced there are SOME things it does well and this is one.
My cousin recommended this documentary "How We Got to Now" that sheds light on how far we have come even in a mere 150 years. It is on Netflix too.
As one who sees the glass half empty more often then full it is good to realize how far we have advanced to live a life attempting to be free of disease and hardship that killed other generations early in life. It throws cold water (pardon the pun--you will see why) on us to sometimes accentuate at the positive. I began to watch it last night and positively hope to complete it all.
Here is the link or below: