(CNN) — A typical New Year’s resolution is to exercise more, although where to start can feel daunting. Some opt for a fitness class; others create a plan with a personal trainer or work out from home ...

If you’re like most people, when you hear the word core, you probably think of six-pack abs. But your core is so much more than that — it’s the powerhouse that stabilizes, supports and moves you ...

Deep beneath our feet, far beyond the reach of drills or submersibles, Earth hides a solid metal heart that behaves in ways geophysicists have struggled to explain. New experiments now suggest that a ...