We are all familiar with elastic materials - just think of a rubber band which can return to its original shape after being ...

However, this elasticity gradually diminishes over time due to intrinsic and extrinsic factors. Aging naturally reduces collagen and elastin production, the two proteins responsible for firm ...

Say goodbye to basic crunches and hello to three muscle-torching crunch variations to build core strength. For this workout, you just need one of the best yoga mats and a resistance band or loop ...