Scientists at RIKEN in Japan have developed a new type of plastic that’s just as stable in everyday use but dissolves quickly in saltwater, leaving behind safe compounds. The benefit of plastics ...

If you're looking to buy equipment to get in shape, start with adjustable dumbbells ... re capped at 55lbs and contain (less durable) plastic parts.

You get the equivalent of a dumbbell rack (eight pairs) worth of free weights ... case with more awkwardly-shaped rivals like the Ativafit Adjustable Dumbbells. The plastic docking stations also feel ...