Close-up of a well-defined muscular arm, highlighting fitness and strength in low light.

Carrying a Neanderthal Gene Comes With Extra Muscle

Neanderthals carried a growth hormone receptor that signals more strongly in cultured cells than the common modern version. Adults who inherited it average slightly more muscle mass, a marginally shorter jaw ramus and shorter tooth roots.

Close-up view of grilled meat skewers on a wooden board, perfect for BBQ-themed visuals.

Eating Less Protein Might Help You Age Better

A review of more than 350 studies finds that low-protein diets extend lifespan in flies and rodents and improve metabolic health in people, though the authors say the right amount likely depends on how active you are.