Caffeine: How to Use It to Optimize Mental & Physical Performance - #6

In this episode, I explain how caffeine works and how to use it to optimize mental and physical performance, including how dose, timing, and individual sensitivity influence its benefits and tradeoffs. I explain how caffeine blocks adenosine signaling, why feeling more awake is not the same as being more rested, and how absorption and half-life shape its effects. I discuss attention, memory, physical performance, sleep, tolerance, dependence, and withdrawal, along with caffeine’s effects on blood pressure, metabolism, hydration, and anxiety. I also distinguish caffeine itself from coffee, tea, yerba maté, energy drinks, and pre-workout, and examine what long-term coffee research can and cannot tell us about health. Finally, I evaluate common recommendations, including waiting 90 to 120 minutes after waking, caffeine cycling, and combining caffeine with L-theanine. Throughout the episode, I separate established findings from plausible mechanisms and overstated claims, building toward a practical framework for choosing a dose, protecting sleep, and deciding when caffeine is useful.

For show notes and additional resources, visit jacksondowner.com.

Timestamps

(00:00:00) Introduction
(00:05:36) Caffeine 101: What It Is and Where We Get It
(00:12:43) How Caffeine Actually Works
(00:20:41) From Swallowing Caffeine to Clearing It
(00:25:32) What Caffeine Does to the Brain
(00:32:00) Caffeine and Physical Performance
(00:37:06) Caffeine and Sleep
(00:45:36) Tolerance, Dependence, and Withdrawal
(00:51:17) What Caffeine Does to the Body Beyond the Brain
(00:57:58) Why Caffeine Affects Everyone Differently
(01:02:50) Coffee Is Not Caffeine
(01:08:26) Caffeine, Coffee, and Long-Term Health
(01:14:26) Safety, Special Populations, and When the Rules Change
(01:20:55) The Caffeine Protocol
(01:32:46) Conclusion

Disclaimer & Disclosures

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