The body-positive movement has encouraged people, especially women, to see beauty in all shapes and sizes, and it's reminded us that body ideals are culturally constructed and not based on science.

Stepping on the scales when you're trying to get in shape can be a frustrating experience. One day you're happy with the figure, the next you're gaining and questioning where you've gone wrong.

Serena Williams' most recent selfie on Instagram has sparked a massive debate on her body transformation, which comes roughly a month after she first displayed her progress. The tennis great has ...