 Yeah, so just starting out with gadgets, there's a lot of gadgets on the market. You've got an Apple Watch, a Garmin, a Whoop. Those are the big three. These gadgets do a whole lot for you. So, for example, my watch that I use tracks my heart rate variability, my sleep performance, my calories throughout the day, my average heart rate, my resting heart rate. If I'm in sleep debt, which is sleep that you missed out on,