“Fact: SOMETHING(S)”
That’s actually a suspicion.
One thing to note over the past 100 years is the increased life expectancy, mostly due to decreased infant mortality, but also, obviously, to more advanced medicine and technology.
So, you could theorize that part of the reason we see many different things today is:
-People that would’ve died 100 years ago in childhood survived childhood today only to develop another condition later in life.
-An older population would likely correspond to an increased number of elderly ailments (like alzheimers).
Good point, but people living longer now has been ruled out. The percentage of octogenarians with Alzheimer’s is way up.