A company called Ambrosia Health signed up about 150 patients for a novel anti-aging procedure: young blood plasma transfusions. The only problem was the FDA. This week on Decrypted, the story of a startup that claimed it could restore lost youth with young people's blood. We’ll hear from a patient who got the treatment, the researchers who say it endangered patients, and the scientists who believe the idea isn’t as crazy as it seems.

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