Ever feel like your brain is running on empty by 3 p.m.? That mental fog that creeps in during afternoon meetings or when you’re trying to tackle a challenging project might not just be fatigue — it ...

Takanori Takebe is on a mission to find out if people can breathe through their butts. As a medical doctor and stem cell biologist, Takebe spends most of his time trying to develop lab-made livers to ...