I believe that there are multiple ways to look at this claim. In a certain aspect i would agree. Overall if someone is constantly oversleeping, it can lead to many different health problems, some including from skipping meals, and not being productive and active. These things can not only leave to physical health problems, but mental ones too. With that being said I believe that this doesn't just go for every person. I think that depending on the person and their age, this can very. Many times teenagers are viewed as over sleeper's, when in reality teenagers and just like infants, they need some of the most sleep. Many studies have shown that excessive sleeping in some instances can be a good thing, and can actually help people with their health. Although everyone is different and I do believe that depending on the person, not every person is affected negatively with oversleeping.