What we know is that there are specific cleaning cells inside the brain called astroglia that are between the neurons. When they are activated, astroglia scoop up waste products and drive them towards blood vessels so they drain away from the brain.

When you are awake and hustling, this system is shut down. Only when you enter a deep sleep and delta waves prevail, do the astroglia activate and do their work.

If you want to live a world-class life, you’ll need an exercise plan, because physical activity can dramatically improve your health and performance. In particular, you will want an approach that capitalizes what I call the 4Fs: Fitness, Force, Fast and Flexible.

There is widespread agreement that one of the common pathways involved in all human disease, especially chronic diseases, is inflammation. We also know that chronic stress is one of the primary contributors to elevated inflammation levels in the human body. As a result, any conversation about optimal health and performance needs to include an exploration of how we can decrease systemic inflammation. We all need to make an effort to recover and regenerate more effectively so we give ourselves the best chance to avoid conditions such as cardiovascular disease, cancer and depression.

There are several ways you can alter your physical environment to change the way you work. You might not be able to change the state of your building, but you can make small changes to workspaces or rooms that make a big difference. And you don’t have to spend a ton of money—you can work with what you have to create a space more conducive to improved focus and productivity.

As the foundation of all health and performance, sleep is something you need to take seriously. And while you may not have access to a sleep coach like the pro sports teams do, you can still put a protocol in place to help you achieve optimal sleep.

I’ve talked a lot recently about the importance of exercise for controlling focus and attention, which is one of the main benefits on top of the major impacts exercise has on physical health.

But exercise is also essential for establishing and sustaining a joyful and positive mood, which is a funny effect because the secret to establishing a consistent habit of exercise is actually finding the joy in movement.

The other day, a friend of mine who used to work crazy hours told me about his desire to become a true Sleep Master. He had at long last accepted the science of sleep, which I talked about a few months ago in this blog. Exhausted all the time, his health and relationships were suffering and he was making a change.