
"Michael Breus masterfully presents the science as a recipe for self-improvement."
The Power of When prepares you to take full advantage of our adaptation to the rhythms of nature. [...] your decision-making ability will forever be improved. This is a new horizon in our understanding of human behavior, and Michael Breus masterfully presents the science as a recipe for self-improvement.
David Perlmutter
MD Author of Grain Brain and Brain Maker
United States
Related Stories

“A user-manual for your hacking your brain to drive high performance”
Peter Diamandis
Founder of the X Prize, co-chairman of Singularity University, bestselling author · On the book Stealing Fire

“Emily Fletcher [is] a rockstar meditation teacher”
JJ Virgin
Celebrity nutritionist & fitness expert. NY Times best seller for The Virgin Diet & Sugar Impact Diet. · United States, United States

"Her work is life-changing and absolutely essential for every parent"
Marie Forleo
Host of MarieTV and author of Everything is Figureoutable · United States, United States

"I have pages filled with notes just by listening to him"
Brendon Burchard
Best-Selling Author · Portland, United States, United States


“It is much more accurate than early bird/night owl…”
Dave Asprey
Author of The Bulletproof Diet