i envy people who can eat a lot and not gain weight . it 's just not fair . i think those people do n't actually eat that much , it just seems like it though . maybe , but my brother eats a lot , if not more , than me and he barely gains any weight . if he 's taller/bigger than you it would make sense if he does n't gain any weight
Perceived unfairness in metabolic rates and ability to consume large amounts of food without weight gain.