Scientists have discovered that a rare “mirror-image” version of the amino acid cysteine can dramatically slow the growth of certain cancers while leaving healthy cells largely untouched. Unlike most ...

Researchers at the University of Michigan have revealed that cells use a previously unknown feat of molecular craftsmanship to help protect their larger host organisms. The building blocks required ...

When winter sets in and food becomes scarce, some mammals hibernate, entering a state of deep rest that slashes their energy needs and allows them to fast for months. However, fasting deprives them of ...