Your kids may suddenly want studs, hoops or shiny bead earrings - and preferably pierced ears. But are they ready? And if so, where to go and how best to prepare so the piercings heal properly and don ...

Scientists at Harvard University have created a hydrogel that’s tough, biocompatible, self-healing, and can be repeatedly stretched to 21 times its regular length without breaking – all of which are ...

Researchers used gallic acid, an antioxidant found in gallnuts, green tea and other plants, and applied a stretching mechanism to human cartilage cells taken from arthritic knees that mimics the ...