Ben Greenfield demonstrates Blue Sync, a wearable that filters sunlight to boost circadian rhythm stimulation. The device claims 40 minutes of wear provides the same circadian benefit as 60 minutes of unfiltered daylight, but with damage equivalent to only 20 minutes. It removes red wavelengths while adding blue light to increase alertness without the retinal damage concern that Dr. Wunsch raised.
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Wear these when we're playing pickleball tonight. Yeah, so they do sharpen you up. They can be used in the morning to energize whether you're indoors or outdoors. They're especially effective in bright light conditions because, of course, there's more light. Blue light. Precisely. Basically what I'm going to do is I'm going to point this to either of these white LEDs. So this is a blank screen, so I'm just going to point this. And then you might just have to focus the camera, but we'll see a cold white LED spectrum. See huge bike. And then you have very little lights you got to shine on us while we're podcasting. So pass that. That red line is supposed to be the healing, regenerative part of the spectrum, which sunlight has tons of. But unfortunately there's very little here. This just basically takes what's already in the environment, concentrates it, but cuts out the bad stuff. Exactly. The best part of the problem with those is they. They work by adding more blue light, which Dr. Wunsch was fundamentally opposed to. Because what that means is over time you will cause more degradation to the retina. So when you add more light to get the stimulus, it's going to wake you up, but there's going to be long term impact. Long term impact. If you use it every day, it will cause more degradation of the retina. So with Blue Sync, we, we're actually providing an increase in the circadian stimulus while reducing the damaging effects of the light exposure. So, for example, the way he put it is that given the increase in melanopic lux, so the wavelengths that stimulate the circadian rhythm, 40 minutes wearing blue Sync outdoors would be equivalent to approximately 60 minutes of unfiltered daylight exposure. But with the damage of only 20 minutes of unfiltered daylight.