By early 1929, Flores had secured financing, set up his own firm and manufactured more than 100,000 wooden toys and trademarketed the name “yo-yo.” Flores realized that people had to be shown how to ...

In experiments using mice and samples of human fat tissue ... what it was like to be at a higher weight. The “yo-yo effect” is well known to many who’ve attempted a weight loss program ...

Created in Italy and made of just 57 components, the Yoyo Pro makes extensive use of 3D-printing for its bodywork and cabin. Inside, it features a large window area that’s designed to give the ...