I’m on a diet and I weigh myself every morning. Last night I weighed myself before bed. This morning, I weighed myself when I got up. I was 5 pounds lighter this morning than I was last night. I was a bit heavier than usual because I had had a friend over and we ate a bunch of pizza and I always drink a lot of water.
In that time all I did was sleep. I didn’t use the washroom to pee or poo or anything else that involves stuff coming out of me.
Where the hell did all of that weight go? I understand that you sweat, but 5 pounds in 9 hours? That seems crazy.
In: Biology
Over 9 hours of sleep you would breathe out about 0.75lb of CO2, breathe out 0.5lb of water vapor, and sweat out another 0.75lbs of water. That’s about 2lbs a night normally.
There could be other differences like what you wore, but it could also be error in the scale reading; cheap bathroom scales aren’t super accurate so if the house is colder in the morning than before bed that could change how it reads by a lb or two
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