4 ms·

Lead?

• gwbas1c 1y ago
  Personally, I think it's some other pollutant. That being said, there's some remarkable correlations with bans on leaded gasoline.
  • olddustytrail 1y ago
    The man who invented leaded gasoline - Thomas Midgley Jr. - also invented CFCs. He's been referred to as a "one man environmental disaster".
    • aaron695 1y ago
      [dead]
    • SoftTalker 1y ago
      Two things we know for sure now, and probably knew pretty well even then, chlorinated hydrocarbons and heavy metals are not good for the environment. They have their industrial uses but need to be used with care.
• JumpCrisscross 1y ago
  > Lead? Unclear. The cohort most exposed to atmospheric lead was born between 1951 and 1980 [1]. This study only measures those born before 1948. (To the extent the study supports a hypothesis, it's the null. Given atmospheric lead increased from 1890 onwards, until about the 1980s [2], if lead were the culprit we'd expect to see more dementia among the study's younger generations. Not less.) [1] https://www.pnas.org/doi/full/10.1073/pnas.2118631119 https://www.pnas.org/doi/full/10.1073/pnas.2118631119 [2] https://www.sciencedirect.com/science/article/abs/pii/S1040618223002951 https://www.sciencedirect.com/science/article/abs/pii/S10406...
  • Nopoint2 1y ago
    Cars only fully replaced horses after WW2, so they were the first universally exposed generation, if anything.