Andrew Huberman· PhD
For straight men, you total up all the older brothers they have and all the older sisters. And there's a ratio of about 105 older brothers to 100 older sisters.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
For straight men, you total up all the older brothers they have and all the older sisters. And there's a ratio of about 105 older brothers to 100 older sisters.
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For the gay men, it it turned out there were 140 older brothers for every 100 sisters.