Proper sleep hygiene dramatically improves your executive functioning, mental health, and performance in every aspect of your life. If you want to create conditions conducive to personal growth and high achievement, this Keystone habit is a must. Sleep is more important than anything else you can do to improve your health, happiness, and productivity.  This includes diet, exercise, supplementation, and medication (except of course in extreme cases). The Practical Cut: Actionables Only LightGet 5 minutes of low solar-angle light 30-60 minutes after waking Get low solar-angle light in the evening (sunrise/sunset light) Avoid artificial light from 10 PM to 4...

In the pursuit of our best selves, there's a key challenge we all have faced, or are likely facing right now. If I asked you, right now, to list 5 things you aren’t doing in your life that you know you should be doing, I imagine you could easily do so. In fact, chances are the number is much higher than five. And why is that? We eat things that aren’t good for us, spend time on things that don’t matter to us, and act contrary to our purported ideals.  Sometimes it can feel like we're trying to hold up...