Nanotechnology: Smiles all round

A smile can say more than a thousand words, the saying goes. Orthodontics can help improve the appearance and position of people's teeth and jawbones, for better functioning teeth and more attractive smiles. In recent years, ...

Bracing for her future: Human medicine rescues giraffe

Over the past three decades Ara Mirzaian has fitted braces for everyone from Paralympians to children with scoliosis. But Msituni was a patient like none other—a newborn giraffe.

Walking efficiently takes next to no thought

Whether walking beside a lake or clambering a mountain, people adjust their strides to use the least energy possible. "People are continuously sensing their energy expenditure and adapting their gait to minimize costs," says ...