Scholars hypothesize that tattooing was a permanent version of the desired aesthetic of body painting.
This has led many diet and nutrition experts to hypothesize that foods containing fat are more fattening than foods without them.
Researchers hypothesize that narcolepsy is a result of dysfunction within the body's sleep cycle regulation, but they do not know how to prevent this disorder from developing or how to completely stop it once it does manifest in a person.
Some people hypothesize that the gameplay in some of the classic video games was actually better than in more recent releases; clearly people weren't playing those early games for their graphics or audio quality.
Some researchers hypothesize that the ovaries of women with PCOS are abnormal in other respects.