Peter Attia· MD
I ended up losing a little bit of weight but when I came out I would definitely rejuvenation I lost nine pounds and it came out seven so I went in 216 so I went in pretty late I'm like 2 21 now so last year I entered the mission at 216 and I came out like 207 which was like I thought the scale was wrong so even though I ate a lot of calories during that mission metabolic yeah my metabolic rate was really high you know and that that was a consequence of that is so interesting because it's those are two completely contradictory concepts to me on the one hand you're saying hey my glucose levels went down my ketone levels went up it looked like I had fasted for a week yep but of course if you fasted for a week your metabolic rate would be going down and not up in fact you would expect to see at ah Fiji skyrocket whereas I'm sitting here as I'm listening to you thinking would at hoffa G have increased during that period of time or decreased I think anything that pushes glucose lo and Ketones that hi and I think not really without knowing it we're pretty task loaded so you don't have all the time you know that much time to eat I mean part of the mission is that they're training this is part of its the only NASA analog where astronauts are actually part of the crew members like other things like hi-seas mission or NASA hero mission actually uses everyday folks and they push them to the limits and see how they they can break them but the NASA Nemo mission is actually training sort of astronauts so they task load you to see what you're doing and you don't have a whole lot of time to eat but I was I was consuming what my normal calories would be but I was under I underestimated my calories for this and I think it put me in a calorie deficit which probably decreased my testosterone may have a cortisol level increase but it was still within the normal range