Aug31
Is Caffeine Helping or Hurting You? with Stephen Cherniske
Is your morning coffee helping or hurting your health?
The answer may depend on much more than how many cups you drink.
In this episode of the ReThink Health Podcast, I sit down with nutritional biochemist Stephen Cherniske, author of Caffeine Blues, for a nuanced look at one of the most widely consumed compounds in the world: caffeine.
Rather than labeling caffeine “good” or “bad,” Stephen explains why your dose, timing, genetics, and individual response can completely change how caffeine affects you.
Stephen (who still drinks coffee himself) encourages understanding your own physiology and using caffeine strategically rather than mindlessly; a distinction that becomes especially important since people can metabolize and respond to caffeine very differently.
You’ll learn:
- Why caffeine doesn’t actually give your body energy (and what it does instead)
- The research-backed benefits of caffeine for cognition, memory, athletic performance, and metabolic health
- Why the same amount of caffeine may make one person feel great and another anxious, jittery, or unable to sleep
- How caffeine can interfere with deep, restorative sleep even when you think you’re sleeping just fine
- How your heart rate and sleep quality may provide clues about your personal caffeine tolerance
- Why caffeine timing matters (and when Stephen recommends cutting yourself off for the day)
- Why tea may feel different from coffee for people who are sensitive to caffeine
- What to look for when choosing a high-quality decaf coffee
If coffee is one of the first things you reach for every morning, this episode will help you stop thinking about caffeine as simply “healthy” or “unhealthy” and start asking a much more useful question: How is it actually affecting you?
Watch the full conversation on YouTube.
Prefer audio? Listen below or on Spotify & Apple iTunes Podcasts
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About Dr. Stephen Cherniske
Stephen Cherniske is a nutritional biochemist and author best known for his work exploring caffeine, metabolism, energy, and healthy aging. He is the author of Caffeine Blues, a book examining the physiological effects of caffeine and the potential consequences of excessive consumption.
His approach to caffeine is decidedly individual rather than all-or-nothing. Even after writing Caffeine Blues, Stephen continues to drink coffee himself, carefully monitoring factors such as sleep, anxiety, heart rate, and blood pressure and adjusting his intake based on how his body responds.
His central message is that caffeine isn’t inherently good or bad. Understanding your individual response (including your genetics, dose, timing, sleep, and overall health) can help you determine whether caffeine is serving you or working against you.
Thanks so much for spending time with us this week! Have a question or feedback? Email us at [email protected]—we would genuinely love to hear from you.
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