Here we go again. Another company is selling embryo selection for intelligence. This time they claim to exclude the educational attainment predictor because of confounding. But the most recent data shows the intelligence predictor (which they use) is even more confounded!

"Dr. Daniel Griffin, an infectious disease specialist at Columbia University, said the memos reflect wider talking points among health officials. “They seem obsessed with myocarditis, and they made a decision on that which they just have a fixed ideology that they keep

Happy #WorldPopulationDay2025! A reminder that the World and US populations are still growing, not declining. jenndowd.substack.com/p/is-our-popul…

I wrote a little bit about a cool recent paper looking at heritability estimates from very large registry data, and how we still really don't understand why outcomes track in families. A short 🧵:

We show that access to legal, subsidized abortion lowered births (and marriages) among very young women and increased their educational attainment, while long-term fertility was barely affected 🏥

📣 We are seeking to fill multiple postdoctoral positions! We have funding to fill NIH T32 program-based positions. Positions start Fall 2025, but timing is flexible! We'll begin reviewing applications July 21st, 2025 - so don't wait! Apply now! pop.umn.edu/training/postd…

By comparison, Germany’s total fertility rate still fell in 2024, but completed family size (total number of children born over a woman's reproductive life) continues to increase among women born in the 1970s due to the same reason: late births.

Remarkably, flu all but disappeared from circulation for the first two years of the COVID pandemic, & one entire influenza B lineage went extinct. But did COVID have a lasting impact on patterns of other viruses? jenndowd.substack.com/p/did-covid-ch…

Demographers, and long time PAA members, Nick Mark and Leslie Root discuss the U.S. fertility rate with Sarah Varney PBS News