The Brain’s Cleanup Crew: A New Way to Fight Alzheimer’s Before It Starts
Glutamate is the brain’s favorite neurotransmitter, running the show for memory, mood, and cognition. But like an overenthusiastic party guest, too much of it can cause serious trouble—specifically, a toxic buildup of tau protein, the molecular wreckage linked to...
Scientists Hack Cannabis for Pain Relief—Without the High or Addiction
The war on painkillers has a new combatant, and it’s wearing a lab coat. A team of scientists at Washington University and Stanford has engineered a molecule that steals cannabis’ pain-fighting powers without plunging users into a THC-induced haze—or worse,...
The Oldest Bone Tools Ever Found Might Rewrite Human History—Again
1.5 million years ago, some very determined hominids took a look at a pile of animal bones and thought, “What if we made these sharper?” Fast forward to today, and archaeologists digging through Tanzania’s Olduvai Gorge have just uncovered the oldest known bone tools...





