Pretty weird, right? So that sound is actually at the same burst frequency as your brain waves when your brain is in deep sleep, that sound pattern actually, PRIMES your mind to have more of these regenerative Delta waves. When we ask participants the next day about the sound, There were completely unaware that we played the sounds yet their brains responded with more of these Delta ways. Here's an image of someone's brain waves from the study that we conducted See the bottom panel. This shows the sound being played at that burst frequency. Now look at the brain ways in the upper part of the Graefe. You can see from the Graf that the sound is actually producing more of these regenerative Delta waves. We learned that we could accurately track sleep without hooking people up to lecture roads and makes people sleep deeper. Were continuing to develop the rights sound environment and sleep habitat to improve. People sleep health, our sleep isn't as regenerative as it could be, but maybe one day soon we could wear a small device and get more out of our sleep. Thank you. For more Tonks ted.com. Laura. Yes.