I know some people who eats a lot but still they dont gain any weight but at the same time i have seen people who gains weight even if they eat pizza or drink coke. But have you ever heard of a person who did not eat anything but still gains a lot of pounds excluding person who has disease like thyroid.
It is a ordeal of Kate Archibald who were gaining weight without eating anything but she found out the reason one day when she woke up and that completely distressed her.
Roommates of Kate was getting angry on her because all of the missing ration and they were blaming on Kate that she ate it but at the same time Kate had no idea that she is the one who is behind this missing ration.
Kate was suffering from sleep walking disorder, where she wakes up at night and ate the food without knowing herself. She noticed this when randomly she woke up in the morning and found a lot of chocolate wrappers on her bed.