Peter Attia· MD
So the ones that make it to day five or six is a lower percentage the older a woman is because a higher proportion of those embryos are just going to be abnormal.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
So the ones that make it to day five or six is a lower percentage the older a woman is because a higher proportion of those embryos are just going to be abnormal.
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Then we look at them again. The ones that have made it to that stage, which is usually only half of them.
So we're culturing these embryos in the petri dish for 5 to 6 days. Then we look at them again. The ones that have made it to that stage, which is usually only half of them. So remember, you're seven now, maybe there's three or four.
Most likely the ones that didn't make it are the chromosomally abnormal ones.