Here is a presentation by Hans Rosling on the world health statistics which shows an interesting trend regarding the plight of nations over the course of the last 200 years. Contrary to popular opinion, mankind is getting healthier, wealthier, and more efficient as time rolls on. Mankind is progressing, not regressing.
An interesting trend Hans points out at the end is that developed nations tend to have people who live long lives and who have small families. I’m not so sure that is a good thing, but it is interesting to note nonetheless.