[00:01] entrainment. Entrainment isn't just a word. It's not just a concept. It's a scientific process that you can leverage toward better energy, better focus, better learning, better workouts, and so on. If you do an activity regularly, say [00:15] for 2 or 3 days in a row, and that activity shifts your neurochemistry and your hormones in a particular direction, what will happen is then 10 or 15 that activity. You'll start to notice an increase in energy. And that increase in [00:31] energy is in part psychological, but it is in large part physiological. Let me give you an example of this. If you were to exercise at roughly the same time, it doesn't have to be the exact same time. Let's say the at a given time plus or [00:44] minus 15 minutes for two or three days in a row. And that exercise generates the release of adrenaline, epinephrine in your body, which most moderate to intense exercise does. It increases norepinephrine in the brain, which [00:56] increases alertness. Maybe there's an increase in cortisol, too. And by the the exercise induced increase in cortisol, provided those workouts aren't grueling and extends, you know, extend hours and hours and provided you can [01:10] recover, it's not a problem. It's a great thing. In fact, if you do that regularly for two a few days in a row, your body starts to anticipate the your body starts to anticipate the release of those molecules leading to an [01:23] increase in energy in the minutes preceding when you would normally start. I've said many times before on the Huberman Lab podcasts where other my book protocols, it includes a section on this as well that viewing morning [01:36] sunlight ideally in the first hour after you wake or even 30 minutes. That's rises, you'll have to use a 10,000 lux artificial light or wait till the sun comes out. But if you do that for a few days in a row, what you'll notice is [01:48] that you start to wake up and feel more alert in anticipation of that light exposure. Okay, this is not placebo effect. It's entrainment. It's the [02:00] ability for your nervous system to predict events that are soon to come because they've happened regularly. And you can leverage it so that you have more energy, more focus, better learning, better workouts. And the key [02:13] is to be somewhat, okay, here's the thing, somewhat regular about the timing of when you exercise. And this includes cognitive things. This includes somebody who has a hard time focusing as many people do these days, but you force [02:28] yourself to put your phone aside and, you know, read a book, if you do that at roughly the same time each day, and you don't even have to do it every day, what you'll soon notice is that getting into the work becomes easier. And yes, there [02:41] is a psychological component of it. But it's also the case that those molecules, neurotransmitters, and hormones that allow you to focus, [02:53] anticipation of the learning that you did roughly at the same time in the did roughly at the same time in the previous days.