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Americans are Getting Sicker – Part 2

Americans are Getting Sicker – Part 2

Why are girls going through periods so much earlier?

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Johnathan Edwards MD
Nov 11, 2024
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Johnathan Edwards MD Substack
Johnathan Edwards MD Substack
Americans are Getting Sicker – Part 2
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Partially adapted from the JRE podcast with Casey & Cally Means MD 2024

Why are girls going through periods so much earlier?

If you ask the New York Times, a headline will appear that says — girls are going through puberty earlier. But they’ll highlight that no one has any idea why, and of course, that’s because there’s no double-blind, placebo-controlled, peer-reviewed RCT in a journal that can precisely pinpoint the one reason why it’s happened. If we pull our heads above water and put the dots together, which is not evidence-based to say what’s happening in our environment right now, excess estrogen drives puberty early.

Got Plastics?

Just look around in our world. Well, let’s look at our environment: plastics. So, we’ve got plastics everywhere.

Eight billion metric tons of plastic have been produced since the 1900s.

  • 1855: Alexander Parkes created Parkesine, often considered the first man-made plastic. It was made from cellulose treated with nitric acid and a solvent. Interestingly, this…

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