In the 1970s there was no dialysis, rudimentary heart treatment, so think nitroglycerin pills, and very basic cancer care.  People dropped dead with their boots on.  Now we have a huge pile of chronically ill that wouldn't have been around back in the day.  Of course you could have VONs.  They also sent a domestic worker to your house to do your housework and look after your other kids when you had a baby in the 1960s.  75% of men were dead by age 70 though.  In my neighbourhood I'm surrounded by very frail elderly people that would all be dead in the 1970s.