Erin Oprea – Tabatas: Like Getting HIIT by a 4×4 – #313

What You Will Hear (note: timestamps represent audio, video may differ)

  •     0:00 – Cool Fact of the Day
  •     0:46 – Casper Mattresses
  •     3:00 – Introducing Erin Oprea
  •     4:13 – Fitness training celebrities
  •     8:23 – Endurance vs. high intensity
  •   12:15 – Thoughts on supplements
  •   13:40 – Overtraining & innovative training
  •   19:16 – Four toxic foods
  •   26:58 – Sleep & diet
  •   30:35 – Cancelling cravings
  •   36:14 – Success stories from the 4×4 Diet
  •   43:34 – Losing belly fat
  •   44:12 – Developing a recipe book
  •   47:08 – Erin’s favorite recipe
  •   48:04 – Habits and values from the military
  •   55:41 – Top 3 recommendations to kick more ass and be Bulletproof!


Casper Mattresses  promo code: bulletproof

Oprea Fitness 

The 4 x 4 Diet 

Erin’s Instagram 


Tabata Training 

Sodium and the renin-angiotensin-aldosterone system 

Juice Plus 

Mark Sisson 

On Combat, The Psychology and Physiology of Deadly Conflict in War and in Peace 

On Killing: The Psychological Cost of Learning to Kill in War and Society 


Bulletproof Coffee 

Brain Octane Oil 

Bulletproof Vibe 

Bulletproof Chocolate Fuel Bars 

Bulletproof Cookbook 


Questions for the podcast?

Leave your questions and responses in the comments section below. If you want your question to be featured on the next Q&A episode, submit it using our Podcast Voicemail! You can also ask your questions and engage with other listeners through The Bulletproof Forum, Twitter, and Facebook!

Subscribe To The Human Upgrade

In this Episode of The Human Upgrade™...

Subscribe To The Human Upgrade

Similar Episodes


Subscribe To The Human Upgrade




Not Harder

Smarter Not Harder: The Biohacker’s Guide to Getting the Body and Mind You Want is about helping you to become the best version of yourself by embracing laziness while increasing your energy and optimizing your biology.

If you want to lose weight, increase your energy, or sharpen your mind, there are shelves of books offering myriad styles of advice. If you want to build up your strength and cardio fitness, there are plenty of gyms and trainers ready to offer you their guidance. What all of these resources have in common is they offer you a bad deal: a lot of effort for a little payoff. Dave Asprey has found a better way.

Also Available


Start hacking your way to better than standard performance and results.

Receive weekly biohacking tips and tech by becoming a Dave Asprey insider.

By sharing your email, you agree to our Terms of Service and Privacy Policy