What is lion's mane? The shaggy mushroom in many mushroom coffees, and why four small trials can't yet tell you what a cup does
Lion’s mane is one of the names you’ll see on almost every mushroom coffee label, usually next to reishi, chaga and cordyceps. Most write-ups lean on memory-and-focus language. We went looking for the human trials behind it, and what we found is a small, un...