📝 Episode Summary
NASA scientist reveals ketone performance benefits.
🎯 Top Takeaways
- Focus follows stress: brief stress (like cold or exercise) enhances learning by releasing neurochemicals
- Dopamine is about motivation, not reward—it drives you toward goals and is depleted by too-easy pleasures
- View morning light without sunglasses to maximize cortisol release and set your circadian clock
- Breathing controls your nervous system: longer exhales activate rest-and-digest; longer inhales activate alertness
- Non-sleep deep rest (NSDR) can restore dopamine and mental energy in just 10-20 minutes