That’s part of the cycle. But after their era we get the coke fueled late 70s and 80s, then coke morphs to crack in the late 80s and 90s, heroin had a quick resurgence in the mid-90s, but then meth hit big for late 90s into the 00s, and now has been replaced again by heroin.
I remember sitting on a couch at my aunt's house, reading a story about heroin addicts in Reader's Digest. This would have been in about 1965. I was in fourth or fifth grade. The story literally made me sick to my stomach. My parents thought I was just reading some story about the astronauts.
I'll never forget that story.