Lie face down, then raise your weight onto your toes and forearms. Keep your body in a straight line from head to heels. Target: Entire core and stability. Goal: Hold for 30–60 seconds. 2. Bicycle Crunches

Achieving a flat stomach is a multifaceted goal that combines core strengthening with fat-burning lifestyle habits. While you cannot "spot-reduce" fat in just one area, targeted exercises strengthen the underlying abdominal muscles to create a toned, firm appearance.

Ranked as one of the best ab exercises, this movement targets both the rectus abdominis and obliques.

Perform these exercises in a circuit, resting for 30–60 seconds between each set.

This foundational move engages all core muscles, including the deep transverse abdominis that helps pull your waistline in.