ByJESS COCKERILLGeneric shot of white supplement powder (Vladyslav Varshavskiy/iStock/Getty Images Plus) A new study in mice found limited intakes of one particular essential amino acid slowed the impacts of ageing and even lengthened their lifespan. Scientists are now wondering if these findings could help people improve their longevity and quality of life. Isoleucine is one...
