Bryan Johnson· Author
Lowers sperm count, disrupts thyroid hormones, suppresses the immune system, elevates cholesterol, creates liver damage, increases cancer risk, causes neurodedevelopmental issues, lower fertility in women.
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We can't find evidence that holds up here. Proponents are reasoning from mechanism or analogy rather than direct human data, and the most credible skeptics raise objections we can't dismiss.
Lowers sperm count, disrupts thyroid hormones, suppresses the immune system, elevates cholesterol, creates liver damage, increases cancer risk, causes neurodedevelopmental issues, lower fertility in women.
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