Huberman offers specific protocols for late-night exercise, recommending Alpha-GPC with garlic to boost focus without harming sleep, followed by a hot shower and physiological sigh to lower arousal. He emphasizes that true health optimization is about adaptability and consistency, not rigid perfection, to avoid burnout. For memory, he highlights self-testing and embracing errors as key drivers of neuroplasticity. On fertility, he advises a low-inflammation diet with fermented foods and supplements like CoQ10 and L-Carnitine, while warning that exogenous testosterone harms male fertility. He discusses perimenopause's impact on mental health, noting that properly timed hormone therapy can be beneficial. For surgery recovery, he recommends prehabilitation and maintaining a normal circadian rhythm in the hospital. Finally, he advises that finding passion comes from actively engaging with the world, maintaining structure, and developing core skills before innovating.