Scientists have debated for decades whether the human brain sprouts new neurons throughout life. What would it mean if it could — and how much evidence is enough?

Every year, scientists venture into Earth’s most remote corners — from the crushing depths of ocean trenches to the misty canopies of cloud forests — and return with remarkable discoveries that ...

Scientists have uncovered a surprising secret hidden inside fat cells that could reshape how we think about obesity and metabolic disease. A protein called HSL, long believed to simply release stored ...