Dialing up a single hypothalamic protein and topping off D‑serine partially reversed brain aging signs, hinting at a future “control center” lever for lifespan.

Transplanting human gut microbes into mice shifted brain genes toward higher energy use and plasticity, hinting that our microbiome helped power up cognition.  

Two common “forever chemicals” were tied to faster biological aging in midlife men, hinting that reducing PFAS exposure could be a quiet longevity lever.  

MRI data suggest more muscle and less hidden belly fat track with a younger “brain age,” hinting that strength work doubles as a quiet neuroprotection strategy.