This week's video describes the results of a 2018 study conducted at the University of Cambridge about boosting testosterone levels.

It’s a method that can create a 5% boost in testosterone within minutes, no supplements needed.

It has to do with changing what you pay attention to and what you believe about yourself.

Your attention acts like a lens—adjust its focus, and you can change your inner reality in ways that change your outer reality.

Jump-Start Your Brain’s Natural Drive With “Certainty-Circuits”

Regardless of what you’re trying to accomplish in life, one universal principle can help you succeed. I’m talking about the power of absolute certainty.

Moving from a state of uncertainty to a state of certainty is like magic. And whether you’ve recognized it or not, I’m sure you’ve felt it before.

Here’s what it feels like…

You’re at the beach, standing at the edge of the surf, dipping your toe to see how cold the ocean feels. You came here to swim, get some exercise, and let your kids play around in the ocean.

But now you feel sleepy, not much like exercising. And the ocean feels colder than you expected. Then something catches your eye.

It’s a flash of color floating 30 yards out in the waves. You realize it’s the back of your son’s swimsuit. He’s face down, bobbing aimlessly in the waves. He appears to be unconscious.

Your...

A lot of productivity comes down to state management.

It sounds goofy, but if I’m ever really struggling, I may stop work for 5 minutes to watch a few fight scenes from my favorite action movie, The Bourne Identity. That’s state management.

If you’re a Tony Robbins fan, you may know he jumps on a trampoline while shouting affirmations to himself for a few minutes before he rushes on stage to greet the crowd. That’s state management.

If I’m feeling sleepy before hopping on a coaching call, I’ll do 50 push-ups, or step outside for two minutes without a coat during the winter. That’s state management.

Thinking can only take you so far. Sometimes you need to change your state first and then the right kind of thoughts begin to emerge with less struggle.

Before I learned this truth of human nature, I used to try to fight drowsiness by thinking my way out of it. I’d be driving during the midafternoon slump, my wife asleep in the passenger...