BOOK
How to accomplish your goals and master stress
“Trying to squeeze every last bit out of your day is a recipe for burnout, not success. Ultraprodutive offers a better way. And its 90-90-90 formula to optimize focus, sleep and stress is a game-changer.”
The Diversified Solopreneur
“Ultraproductive turns cutting-edge research into practical systems to accomplish more and master stress. It’s the operating manual for thriving in the modern world.“
System Sunday
Ultraproductive: How to 10x your productivity
and master stress
This breakthrough book from Dr. Christian Poensgen and Eric Partaker is the
operating manual for sustainable peak performance and holistic well-being.
It will be published by Portfolio Penguin in the spring of 2026.
10 Things This Book Will Teach You
Learn how to…
- Double your overall productivity in 90 minutes a day with “Deep Focus Optimization”.
- Do Ultraproductive “Timeboxing”, the method Bill Gates and Elon Musk use to win their day.
- Join the 10% most productive people by following the “90-Minute Defocus Rule”.
- Get two days out of one by cultivating “Deep Rest” in the afternoon.
- Improve your recovery, creativity and relationships by calling it a day.
- Increase your focus and well-being by reducing your screen time to 90 minutes a day.
- Sustain peak productivity and health in 90 minutes a night with “Deep Sleep Optimization”.
- Build the physiological foundation of peak energy with light, nutrition and exercise.
- Master stress systematically with “Sustainable Stress Optimization”.
- And most importantly, how to put these methods into practice in real life.
…and much more.