Trainers Say This Is Exactly How Many Minutes of Core Work You Really Need Each Day To See Results originally appeared on Parade. When it comes to sculpting a stronger, more defined core, many people ...

The advice is common — and vague. Here’s how to do it properly. By Hilary Achauer When I began weight lifting in my late 30s, my coaches often gave me a somewhat baffling cue. “Engage your core,” they ...