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Rapamycin extends mouse lifespan 9–14%
NAD+ precursors reverse aging in humans
Blue-light glasses improve sleep quality
Walking 10 min after meals blunts glucose
Verdict change — caffeine half-life downgraded

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In Vitro Fertilization: The IVF Process Start to Finish | Paula Amato, M.D. — Whalespan

Content›Video›In Vitro Fertilization: The …

In Vitro Fertilization: The IVF Process Start to Finish | Paula Amato, M.D.

Peter Attia14m · 2025-06-12

Claims Made

31

Claims Supported

11

Support Rate

35%

Support rate

11 of 31 claims supported

11 supported20 partial / not

Claims from this content

21

◐Partially SupportedIn ICSI, sperm with the best morphology and motility are selected and injected into an egg.✓Well SupportedApproximately half of embryos reach the blastocyst stage, with chromosomally abnormal embryos being least likely to survive.◐Partially SupportedThe egg retrieval procedure is timed to occur 36 hours after the hCG trigger shot, just before natural ovulation would occur.◐Partially SupportedEmbryo implantation is timed to occur in the second half of the menstrual cycle.◐Partially Supported

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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.

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During IVF embryo transfer, the embryo is placed approximately 1.5 to 2 centimeters from the top of the uterus.

✕Not SupportedImplanting two embryos at once carries approximately a 50% chance of twins, which is considered too high a risk.

◐Partially SupportedA chromosomally normal embryo has a 70-75% implantation chance.

◐Partially SupportedCarrier screening is a common part of IVF to identify genetic mutations like cystic fibrosis or sickle cell disease.

◐Partially SupportedNext-generation sequencing is commonly used for embryo genetic testing, primarily targeting chromosomal abnormalities, but it is not whole genome sequencing.

◐Partially SupportedThe IVF embryo transfer procedure is similar to a Pap smear, does not require anesthesia, and is performed under abdominal ultrasound guidance.

◐Partially SupportedSupplemental progesterone is sometimes given after embryo transfer to help maintain the pregnancy.

◐Partially SupportedGenetic testing results for embryos typically take one to two weeks to return.

◐Partially SupportedReasonable numbers for a young person undergoing IVF might include harvesting 15 eggs, fertilizing 10, with 7 showing good morphology, and 6 coming back genetically good.

◐Partially SupportedImplanting one embryo has a 70-75% success rate, while implanting two embryos has approximately a 50% chance of pregnancy.

◐Partially SupportedGonadotropins are administered via subcutaneous injection for 8 to 12 days during IVF to stimulate egg development.

◐Partially SupportedEmbryologists examine aspirated follicular fluid to isolate and identify mature eggs.

◐Partially SupportedAssessing a woman's egg number involves both ultrasound follicle counts and AMH blood tests.

◐Partially SupportedThe most common side effect of IVF medications is bloating, with a very rare risk of ovarian hyperstimulation syndrome.

◐Partially SupportedBirth control pills are used in IVF for the first two weeks to suppress ovarian activity and synchronize egg growth.

◐Partially SupportedIntracytoplasmic sperm injection (ICSI) is used for dysfunctional or insufficient sperm.

◐Partially SupportedIn conventional IVF, a large number of sperm are placed with the eggs to allow fertilization to occur naturally.