Could the oldest rocks under our feet be the remains of a planet that is now extinct? This is the kind of question that ...

Potassium channels allow the selective flow of K + ions across otherwise impermeable membranes. During a process called gating, these channels undergo a conformational change that proceeds from a ...

Not only is potassium an essential mineral, it's also an electrolyte that will help you recover from workouts and keep your muscles working properly. And you can find potassium in a bunch of delicious ...