Podbit · Huberman Lab
A physiologic starting dose is 100–120 mg/week of testosterone cypionate or enanthate, divided into every-other-day or three-times-weekly injections. Warning signs requiring close monitoring include acne, hair loss, mental status changes, lipid shifts, cardiovascular risks, fertility issues, and elevated hematocrit.
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At 26:48 · chapter starts 24:52
Fadogia agrestis is introduced as a plant genus that stimulates testosterone production by increasing LH release from the pituitary — acting upstream of the Leydig cells rather than mimicking LH directly. Huberman raises the toxicity concern he has heard about, and Gillett addresses it head-on: a rat study showed dose-dependent increases in the pro-inflammatory markers GGT and alkaline phosphatase at higher doses, but at the human-equivalent dose of 300 mg/day, no toxic effect was observed. He notes the important caveat that rodent toxicity doesn't always translate to humans, but recommends 300 mg/day as a conservative safe ceiling. A practical alternative he uses with his own patients is 600 mg taken three times per week (e.g., Monday, Wednesday, Friday), spreading out the exposure.
Fadogia agrestis increases luteinizing hormone release from the pituitary, triggering the Leydig cells to produce more testosterone. Based on rat-to-human dose translation, 300 mg/day is the safe threshold; 600 mg three times per week is a practical alternative.
A rat study showed 300 mg/day equivalent is the dose with no toxicity for Fadogia agrestis; alternately 600 mg every other day or 3 times a week.
AI nailed Andrew Huberman's vertigo-vs-low-blood-pressure diagnosis because that pattern has been reported millions of times. But every patient's liver is different and data on liver surgeries is scarce worldwide — making solo robot surgery dangerous. The rule is simple: data abundance means AI can help; data scarcity means keep the human in the loop.
Fei-Fei Li's father had liver surgery performed by a da Vinci robot guided by a surgeon. The result: 10 times less blood loss than a typical procedure. This isn't replacement — it's the gold standard of human-machine collaboration, where the human's judgment and the robot's precision combine.
US drug overdose deaths fell from 110,000 to roughly 70,000 — the biggest CDC-recorded single-year drop ever. Men's rates fell 27% in one year, and the steepest decline of all was among 15–24-year-olds, down 37%. The crisis narrative around young men needs to make room for signs of genuine progress.
Kessler thought his grief expertise would protect him. It didn't. When his son David died unexpectedly, he found himself on the floor — and eventually realized that acceptance alone wasn't enough. That unmet need became the sixth stage: finding meaning.
Grief isn't just death — it's any unwanted change. Kessler lectured at Coca-Cola and General Mills not because they had lots of funerals, but because change management is grief management. People who grieve well live well.
Witnessing someone's grief isn't just emotional support — it's an essential act of healing. Kessler argues grief is a severance and connection heals it. But real witnessing has two steps: seeing the pain AND affirming the person's capacity to recover.
Avoiding grief isn't free — it's exhausting. Kessler's beach ball metaphor nails it: pushing a small balloon down is easy, but holding a massive beach ball underwater takes constant, draining energy. Unattended feelings don't disappear; they just consume you.
Most people try to control their environment to avoid triggers. Kessler flips this entirely: triggers aren't problems to manage around — they're a detailed map to your pain and your healing. Every trigger points directly to what needs attention.
Running from pain doesn't leave it behind — it accelerates the chase. Whatever we run from pursues us, and whatever we face transforms us. Both Kessler and Lewis Howes testify to knowing both roads firsthand.
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