Peter Attia· MD
one of the big things that people struggle with when fasting especially doing the multi-day fast i don't think this is an issue with an overnight fast with a three four five day fast sleep does become an issue there's a flip side to that which is the sleep you get seems remarkable i mean by all the metrics of sleep whatever my aura ring tells me is generally very good my heart rate variability goes up by i mean 25 sometimes 50 percent my heart rate goes down my temperature goes down i mean all of these things that i want to move in the right direction do so and it's certainly reflected in my sleep staging the best nights i'll ever have from a staging it's deep sleep is 25 rem sleep is 25 i mean these are really impressive metrics